diff --git a/ets2panda/compiler/lowering/ets/stringConstructorLowering.cpp b/ets2panda/compiler/lowering/ets/stringConstructorLowering.cpp
index 244957d3a46c82bb4cb0ccdc9e187d7401db4cc9..cb025027bd14c415a704ef228dd5f17f5801f433 100644
--- a/ets2panda/compiler/lowering/ets/stringConstructorLowering.cpp
+++ b/ets2panda/compiler/lowering/ets/stringConstructorLowering.cpp
@@ -63,7 +63,7 @@ ir::Expression *ReplaceStringConstructor(public_lib::Context *const ctx,
         return arg;
     }
 
-    // Case for the constructor: new String(str: NullishType)
+    // Case for the constructor: new String(str: Object)
     if (newClassInstExpr->GetSignature()->InternalName() == Signatures::BUILTIN_STRING_FROM_NULLISH_CTOR) {
         auto *arg = newClassInstExpr->GetArguments()[0];
         auto *argType = arg->TsType();
diff --git a/ets2panda/declgen_ets2ts/declgenEts2Ts.cpp b/ets2panda/declgen_ets2ts/declgenEts2Ts.cpp
index 7b3722364457f5305030755af5c732af2677a297..3745dca1cb69df114a6ec57b021bbe743dcbf5cb 100644
--- a/ets2panda/declgen_ets2ts/declgenEts2Ts.cpp
+++ b/ets2panda/declgen_ets2ts/declgenEts2Ts.cpp
@@ -1429,7 +1429,7 @@ void TSDeclGen::ProcessETSTypeReference(const ir::TypeNode *typeAnnotation, cons
     if (ProcessTypeAnnotationSpecificTypes(checkerType)) {
         return;
     }
-    if (checkerType != nullptr && typeAnnotation->AsETSTypeReference()->Part()->GetIdent()->Name().Is("NullishType")) {
+    if (checkerType != nullptr && typeAnnotation->AsETSTypeReference()->Part()->GetIdent()->Name().Is("Any")) {
         OutDts(typeAnnotation->Parent()->IsTSArrayType() ? "(" : "");
         GenType(checkerType);
         OutDts(typeAnnotation->Parent()->IsTSArrayType() ? ")" : "");
diff --git a/ets2panda/scripts/arkui.properties b/ets2panda/scripts/arkui.properties
index c765c20cbffa49bd1d7969beb384dbae62c04499..b0af8202bec1d07f3382939fd452a2509007e939 100644
--- a/ets2panda/scripts/arkui.properties
+++ b/ets2panda/scripts/arkui.properties
@@ -1,3 +1,3 @@
 ARKUI_DEV_REPO=https://gitee.com/rri_opensource/koala_projects.git
-ARKUI_DEV_BRANCH=panda_rev_8-fix-ani-array-api
+ARKUI_DEV_BRANCH=panda_rev_8-remove-nullish-type
 ARKUI_DEST=koala-sig
diff --git a/ets2panda/test/ast/parser/ets/unreachable_fuzz_error.ets b/ets2panda/test/ast/parser/ets/unreachable_fuzz_error.ets
index 1b3e35abc03eff8a6367a730582018ae972dd5f8..81b8aca00ec4a458b1f2dd162afd4ad6882428f0 100644
--- a/ets2panda/test/ast/parser/ets/unreachable_fuzz_error.ets
+++ b/ets2panda/test/ast/parser/ets/unreachable_fuzz_error.ets
@@ -19,14 +19,14 @@
         arktest.assert(y[0] == 1)
         arktest.assert(y[1] == 2)
     
-classtext: string, reviver: ((key: string, value: NullishType) => NullishType) | undefined, type: Type
+classtext: string, reviver: ((key: string, value: Any) => Any) | undefined, type: Type
 
 /* @@? 16:13 Error TypeError: Unresolved reference z */
 /* @@? 22:12 Error SyntaxError: Label must be followed by a loop statement. */
 /* @@? 22:18 Error SyntaxError: Unexpected token ','. */
 /* @@? 22:20 Error SyntaxError: Unexpected token 'reviver'. */
 /* @@? 22:29 Error SyntaxError: Label must be followed by a loop statement. */
-/* @@? 22:91 Error SyntaxError: Unexpected token ','. */
-/* @@? 22:93 Error SyntaxError: Unexpected token 'type'. */
-/* @@? 22:99 Error SyntaxError: Label must be followed by a loop statement. */
+/* @@? 22:75 Error SyntaxError: Unexpected token ','. */
+/* @@? 22:77 Error SyntaxError: Unexpected token 'type'. */
+/* @@? 22:83 Error SyntaxError: Label must be followed by a loop statement. */
 /* @@? 33:1 Error SyntaxError: Expected '}', got 'end of stream'. */
diff --git a/ets2panda/test/compiler/ets/generic_override_2-expected.txt b/ets2panda/test/compiler/ets/generic_override_2-expected.txt
index d7b122dd9aa2069b6d0539c4143747469afe6339..ef606c683a1ef0e158784600e7343266a41d2e95 100644
--- a/ets2panda/test/compiler/ets/generic_override_2-expected.txt
+++ b/ets2panda/test/compiler/ets/generic_override_2-expected.txt
@@ -377,7 +377,7 @@
                                   "type": "ETSTypeReferencePart",
                                   "name": {
                                     "type": "Identifier",
-                                    "name": "NullishType",
+                                    "name": "Any",
                                     "decorators": [],
                                     "loc": {
                                       "start": {
@@ -387,7 +387,7 @@
                                       },
                                       "end": {
                                         "line": 18,
-                                        "column": 45,
+                                        "column": 37,
                                         "program": "generic_override_2.ets"
                                       }
                                     }
@@ -400,7 +400,7 @@
                                     },
                                     "end": {
                                       "line": 18,
-                                      "column": 46,
+                                      "column": 38,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -413,7 +413,7 @@
                                   },
                                   "end": {
                                     "line": 18,
-                                    "column": 46,
+                                    "column": 38,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -427,7 +427,7 @@
                                 },
                                 "end": {
                                   "line": 18,
-                                  "column": 46,
+                                  "column": 38,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -440,7 +440,7 @@
                               },
                               "end": {
                                 "line": 18,
-                                "column": 46,
+                                "column": 38,
                                 "program": "generic_override_2.ets"
                               }
                             }
@@ -460,12 +460,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 18,
-                                      "column": 50,
+                                      "column": 42,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 18,
-                                      "column": 51,
+                                      "column": 43,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -473,12 +473,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 18,
-                                    "column": 50,
+                                    "column": 42,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 18,
-                                    "column": 52,
+                                    "column": 44,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -486,12 +486,12 @@
                               "loc": {
                                 "start": {
                                   "line": 18,
-                                  "column": 50,
+                                  "column": 42,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 18,
-                                  "column": 52,
+                                  "column": 44,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -507,12 +507,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 18,
-                                      "column": 52,
+                                      "column": 44,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 18,
-                                      "column": 54,
+                                      "column": 46,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -531,12 +531,12 @@
                                           "loc": {
                                             "start": {
                                               "line": 18,
-                                              "column": 55,
+                                              "column": 47,
                                               "program": "generic_override_2.ets"
                                             },
                                             "end": {
                                               "line": 18,
-                                              "column": 56,
+                                              "column": 48,
                                               "program": "generic_override_2.ets"
                                             }
                                           }
@@ -544,12 +544,12 @@
                                         "loc": {
                                           "start": {
                                             "line": 18,
-                                            "column": 55,
+                                            "column": 47,
                                             "program": "generic_override_2.ets"
                                           },
                                           "end": {
                                             "line": 18,
-                                            "column": 57,
+                                            "column": 49,
                                             "program": "generic_override_2.ets"
                                           }
                                         }
@@ -557,12 +557,12 @@
                                       "loc": {
                                         "start": {
                                           "line": 18,
-                                          "column": 55,
+                                          "column": 47,
                                           "program": "generic_override_2.ets"
                                         },
                                         "end": {
                                           "line": 18,
-                                          "column": 57,
+                                          "column": 49,
                                           "program": "generic_override_2.ets"
                                         }
                                       }
@@ -571,12 +571,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 18,
-                                      "column": 54,
+                                      "column": 46,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 18,
-                                      "column": 57,
+                                      "column": 49,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -584,12 +584,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 18,
-                                    "column": 52,
+                                    "column": 44,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 18,
-                                    "column": 58,
+                                    "column": 50,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -597,12 +597,12 @@
                               "loc": {
                                 "start": {
                                   "line": 18,
-                                  "column": 52,
+                                  "column": 44,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 18,
-                                  "column": 58,
+                                  "column": 50,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -611,12 +611,12 @@
                           "loc": {
                             "start": {
                               "line": 18,
-                              "column": 50,
+                              "column": 42,
                               "program": "generic_override_2.ets"
                             },
                             "end": {
                               "line": 18,
-                              "column": 58,
+                              "column": 50,
                               "program": "generic_override_2.ets"
                             }
                           }
@@ -629,7 +629,7 @@
                           },
                           "end": {
                             "line": 18,
-                            "column": 58,
+                            "column": 50,
                             "program": "generic_override_2.ets"
                           }
                         }
@@ -643,7 +643,7 @@
                         },
                         "end": {
                           "line": 18,
-                          "column": 58,
+                          "column": 50,
                           "program": "generic_override_2.ets"
                         }
                       }
@@ -656,7 +656,7 @@
                       },
                       "end": {
                         "line": 18,
-                        "column": 58,
+                        "column": 50,
                         "program": "generic_override_2.ets"
                       }
                     }
@@ -673,12 +673,12 @@
                       "loc": {
                         "start": {
                           "line": 18,
-                          "column": 60,
+                          "column": 52,
                           "program": "generic_override_2.ets"
                         },
                         "end": {
                           "line": 18,
-                          "column": 62,
+                          "column": 54,
                           "program": "generic_override_2.ets"
                         }
                       }
@@ -700,12 +700,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 18,
-                                      "column": 63,
+                                      "column": 55,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 18,
-                                      "column": 64,
+                                      "column": 56,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -713,12 +713,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 18,
-                                    "column": 63,
+                                    "column": 55,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 18,
-                                    "column": 65,
+                                    "column": 57,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -726,12 +726,12 @@
                               "loc": {
                                 "start": {
                                   "line": 18,
-                                  "column": 63,
+                                  "column": 55,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 18,
-                                  "column": 65,
+                                  "column": 57,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -747,12 +747,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 18,
-                                      "column": 65,
+                                      "column": 57,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 18,
-                                      "column": 66,
+                                      "column": 58,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -760,12 +760,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 18,
-                                    "column": 65,
+                                    "column": 57,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 18,
-                                    "column": 67,
+                                    "column": 59,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -773,12 +773,12 @@
                               "loc": {
                                 "start": {
                                   "line": 18,
-                                  "column": 65,
+                                  "column": 57,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 18,
-                                  "column": 67,
+                                  "column": 59,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -787,12 +787,12 @@
                           "loc": {
                             "start": {
                               "line": 18,
-                              "column": 63,
+                              "column": 55,
                               "program": "generic_override_2.ets"
                             },
                             "end": {
                               "line": 18,
-                              "column": 67,
+                              "column": 59,
                               "program": "generic_override_2.ets"
                             }
                           }
@@ -801,12 +801,12 @@
                       "loc": {
                         "start": {
                           "line": 18,
-                          "column": 62,
+                          "column": 54,
                           "program": "generic_override_2.ets"
                         },
                         "end": {
                           "line": 18,
-                          "column": 67,
+                          "column": 59,
                           "program": "generic_override_2.ets"
                         }
                       }
@@ -814,12 +814,12 @@
                     "loc": {
                       "start": {
                         "line": 18,
-                        "column": 60,
+                        "column": 52,
                         "program": "generic_override_2.ets"
                       },
                       "end": {
                         "line": 18,
-                        "column": 68,
+                        "column": 60,
                         "program": "generic_override_2.ets"
                       }
                     }
@@ -827,12 +827,12 @@
                   "loc": {
                     "start": {
                       "line": 18,
-                      "column": 60,
+                      "column": 52,
                       "program": "generic_override_2.ets"
                     },
                     "end": {
                       "line": 18,
-                      "column": 68,
+                      "column": 60,
                       "program": "generic_override_2.ets"
                     }
                   }
@@ -985,7 +985,7 @@
                               },
                               "end": {
                                 "line": 18,
-                                "column": 68,
+                                "column": 60,
                                 "program": "generic_override_2.ets"
                               }
                             }
@@ -1002,7 +1002,7 @@
                               },
                               "end": {
                                 "line": 18,
-                                "column": 68,
+                                "column": 60,
                                 "program": "generic_override_2.ets"
                               }
                             }
@@ -1015,7 +1015,7 @@
                             },
                             "end": {
                               "line": 18,
-                              "column": 68,
+                              "column": 60,
                               "program": "generic_override_2.ets"
                             }
                           }
@@ -1028,7 +1028,7 @@
                           },
                           "end": {
                             "line": 18,
-                            "column": 68,
+                            "column": 60,
                             "program": "generic_override_2.ets"
                           }
                         }
@@ -1041,7 +1041,7 @@
                         },
                         "end": {
                           "line": 18,
-                          "column": 68,
+                          "column": 60,
                           "program": "generic_override_2.ets"
                         }
                       }
@@ -1061,7 +1061,7 @@
                             },
                             "end": {
                               "line": 18,
-                              "column": 68,
+                              "column": 60,
                               "program": "generic_override_2.ets"
                             }
                           }
@@ -1077,7 +1077,7 @@
                             },
                             "end": {
                               "line": 18,
-                              "column": 68,
+                              "column": 60,
                               "program": "generic_override_2.ets"
                             }
                           }
@@ -1097,7 +1097,7 @@
                           },
                           "end": {
                             "line": 18,
-                            "column": 68,
+                            "column": 60,
                             "program": "generic_override_2.ets"
                           }
                         }
@@ -1111,7 +1111,7 @@
                       },
                       "end": {
                         "line": 18,
-                        "column": 68,
+                        "column": 60,
                         "program": "generic_override_2.ets"
                       }
                     }
@@ -1125,7 +1125,7 @@
                   },
                   "end": {
                     "line": 18,
-                    "column": 68,
+                    "column": 60,
                     "program": "generic_override_2.ets"
                   }
                 }
@@ -1138,7 +1138,7 @@
                 },
                 "end": {
                   "line": 18,
-                  "column": 68,
+                  "column": 60,
                   "program": "generic_override_2.ets"
                 }
               }
@@ -1153,7 +1153,7 @@
               },
               "end": {
                 "line": 18,
-                "column": 68,
+                "column": 60,
                 "program": "generic_override_2.ets"
               }
             }
@@ -1822,7 +1822,7 @@
                                   "type": "ETSTypeReferencePart",
                                   "name": {
                                     "type": "Identifier",
-                                    "name": "NullishType",
+                                    "name": "Any",
                                     "decorators": [],
                                     "loc": {
                                       "start": {
@@ -1832,7 +1832,7 @@
                                       },
                                       "end": {
                                         "line": 23,
-                                        "column": 45,
+                                        "column": 37,
                                         "program": "generic_override_2.ets"
                                       }
                                     }
@@ -1845,7 +1845,7 @@
                                     },
                                     "end": {
                                       "line": 23,
-                                      "column": 46,
+                                      "column": 38,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -1858,7 +1858,7 @@
                                   },
                                   "end": {
                                     "line": 23,
-                                    "column": 46,
+                                    "column": 38,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -1872,7 +1872,7 @@
                                 },
                                 "end": {
                                   "line": 23,
-                                  "column": 46,
+                                  "column": 38,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -1885,7 +1885,7 @@
                               },
                               "end": {
                                 "line": 23,
-                                "column": 46,
+                                "column": 38,
                                 "program": "generic_override_2.ets"
                               }
                             }
@@ -1905,12 +1905,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 23,
-                                      "column": 50,
+                                      "column": 42,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 23,
-                                      "column": 51,
+                                      "column": 43,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -1918,12 +1918,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 23,
-                                    "column": 50,
+                                    "column": 42,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 23,
-                                    "column": 52,
+                                    "column": 44,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -1931,12 +1931,12 @@
                               "loc": {
                                 "start": {
                                   "line": 23,
-                                  "column": 50,
+                                  "column": 42,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 23,
-                                  "column": 52,
+                                  "column": 44,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -1952,12 +1952,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 23,
-                                      "column": 52,
+                                      "column": 44,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 23,
-                                      "column": 54,
+                                      "column": 46,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -1976,12 +1976,12 @@
                                           "loc": {
                                             "start": {
                                               "line": 23,
-                                              "column": 55,
+                                              "column": 47,
                                               "program": "generic_override_2.ets"
                                             },
                                             "end": {
                                               "line": 23,
-                                              "column": 56,
+                                              "column": 48,
                                               "program": "generic_override_2.ets"
                                             }
                                           }
@@ -1989,12 +1989,12 @@
                                         "loc": {
                                           "start": {
                                             "line": 23,
-                                            "column": 55,
+                                            "column": 47,
                                             "program": "generic_override_2.ets"
                                           },
                                           "end": {
                                             "line": 23,
-                                            "column": 57,
+                                            "column": 49,
                                             "program": "generic_override_2.ets"
                                           }
                                         }
@@ -2002,12 +2002,12 @@
                                       "loc": {
                                         "start": {
                                           "line": 23,
-                                          "column": 55,
+                                          "column": 47,
                                           "program": "generic_override_2.ets"
                                         },
                                         "end": {
                                           "line": 23,
-                                          "column": 57,
+                                          "column": 49,
                                           "program": "generic_override_2.ets"
                                         }
                                       }
@@ -2016,12 +2016,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 23,
-                                      "column": 54,
+                                      "column": 46,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 23,
-                                      "column": 57,
+                                      "column": 49,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -2029,12 +2029,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 23,
-                                    "column": 52,
+                                    "column": 44,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 23,
-                                    "column": 58,
+                                    "column": 50,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -2042,12 +2042,12 @@
                               "loc": {
                                 "start": {
                                   "line": 23,
-                                  "column": 52,
+                                  "column": 44,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 23,
-                                  "column": 58,
+                                  "column": 50,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -2056,12 +2056,12 @@
                           "loc": {
                             "start": {
                               "line": 23,
-                              "column": 50,
+                              "column": 42,
                               "program": "generic_override_2.ets"
                             },
                             "end": {
                               "line": 23,
-                              "column": 58,
+                              "column": 50,
                               "program": "generic_override_2.ets"
                             }
                           }
@@ -2074,7 +2074,7 @@
                           },
                           "end": {
                             "line": 23,
-                            "column": 58,
+                            "column": 50,
                             "program": "generic_override_2.ets"
                           }
                         }
@@ -2088,7 +2088,7 @@
                         },
                         "end": {
                           "line": 23,
-                          "column": 58,
+                          "column": 50,
                           "program": "generic_override_2.ets"
                         }
                       }
@@ -2101,7 +2101,7 @@
                       },
                       "end": {
                         "line": 23,
-                        "column": 58,
+                        "column": 50,
                         "program": "generic_override_2.ets"
                       }
                     }
@@ -2118,12 +2118,12 @@
                       "loc": {
                         "start": {
                           "line": 23,
-                          "column": 60,
+                          "column": 52,
                           "program": "generic_override_2.ets"
                         },
                         "end": {
                           "line": 23,
-                          "column": 62,
+                          "column": 54,
                           "program": "generic_override_2.ets"
                         }
                       }
@@ -2145,12 +2145,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 23,
-                                      "column": 63,
+                                      "column": 55,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 23,
-                                      "column": 64,
+                                      "column": 56,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -2158,12 +2158,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 23,
-                                    "column": 63,
+                                    "column": 55,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 23,
-                                    "column": 65,
+                                    "column": 57,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -2171,12 +2171,12 @@
                               "loc": {
                                 "start": {
                                   "line": 23,
-                                  "column": 63,
+                                  "column": 55,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 23,
-                                  "column": 65,
+                                  "column": 57,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -2192,12 +2192,12 @@
                                   "loc": {
                                     "start": {
                                       "line": 23,
-                                      "column": 65,
+                                      "column": 57,
                                       "program": "generic_override_2.ets"
                                     },
                                     "end": {
                                       "line": 23,
-                                      "column": 66,
+                                      "column": 58,
                                       "program": "generic_override_2.ets"
                                     }
                                   }
@@ -2205,12 +2205,12 @@
                                 "loc": {
                                   "start": {
                                     "line": 23,
-                                    "column": 65,
+                                    "column": 57,
                                     "program": "generic_override_2.ets"
                                   },
                                   "end": {
                                     "line": 23,
-                                    "column": 67,
+                                    "column": 59,
                                     "program": "generic_override_2.ets"
                                   }
                                 }
@@ -2218,12 +2218,12 @@
                               "loc": {
                                 "start": {
                                   "line": 23,
-                                  "column": 65,
+                                  "column": 57,
                                   "program": "generic_override_2.ets"
                                 },
                                 "end": {
                                   "line": 23,
-                                  "column": 67,
+                                  "column": 59,
                                   "program": "generic_override_2.ets"
                                 }
                               }
@@ -2232,12 +2232,12 @@
                           "loc": {
                             "start": {
                               "line": 23,
-                              "column": 63,
+                              "column": 55,
                               "program": "generic_override_2.ets"
                             },
                             "end": {
                               "line": 23,
-                              "column": 67,
+                              "column": 59,
                               "program": "generic_override_2.ets"
                             }
                           }
@@ -2246,12 +2246,12 @@
                       "loc": {
                         "start": {
                           "line": 23,
-                          "column": 62,
+                          "column": 54,
                           "program": "generic_override_2.ets"
                         },
                         "end": {
                           "line": 23,
-                          "column": 67,
+                          "column": 59,
                           "program": "generic_override_2.ets"
                         }
                       }
@@ -2259,12 +2259,12 @@
                     "loc": {
                       "start": {
                         "line": 23,
-                        "column": 60,
+                        "column": 52,
                         "program": "generic_override_2.ets"
                       },
                       "end": {
                         "line": 23,
-                        "column": 69,
+                        "column": 61,
                         "program": "generic_override_2.ets"
                       }
                     }
@@ -2272,12 +2272,12 @@
                   "loc": {
                     "start": {
                       "line": 23,
-                      "column": 60,
+                      "column": 52,
                       "program": "generic_override_2.ets"
                     },
                     "end": {
                       "line": 23,
-                      "column": 69,
+                      "column": 61,
                       "program": "generic_override_2.ets"
                     }
                   }
@@ -2623,7 +2623,7 @@
                   "loc": {
                     "start": {
                       "line": 23,
-                      "column": 68,
+                      "column": 60,
                       "program": "generic_override_2.ets"
                     },
                     "end": {
diff --git a/ets2panda/test/compiler/ets/generic_override_2.ets b/ets2panda/test/compiler/ets/generic_override_2.ets
index b574f303442d8feac63bbe97fa66206b04a51863..50f06a3aba6a530a5533335551cfd5f2396ed70c 100644
--- a/ets2panda/test/compiler/ets/generic_override_2.ets
+++ b/ets2panda/test/compiler/ets/generic_override_2.ets
@@ -15,12 +15,12 @@
 
 interface PL<T> {
     then<U, E = never>(onFulfilled?: (value: T) => U|PL<U>,
-            onRejected?: (error: NullishType) => E|PL<E>): PL<U|E>;
+            onRejected?: (error: Any) => E|PL<E>): PL<U|E>;
 }
 
 class P<T> implements PL<T> {
     then<U, E = never>(onFulfilled?: (value: T) => U|PL<U>,
-            onRejected?: (error: NullishType) => E|PL<E>): PL<U|E> {
+            onRejected?: (error: Any) => E|PL<E>): PL<U|E> {
         return new P<U|E>()
     }
 }
diff --git a/ets2panda/test/runtime/ets/invoke-with-rest.ets b/ets2panda/test/runtime/ets/invoke-with-rest.ets
index 714765bd1ae1f75108d6413855088773e3650b26..db6bc82f1b00bbb390ecc4e11cfe4b8f4a930635 100644
--- a/ets2panda/test/runtime/ets/invoke-with-rest.ets
+++ b/ets2panda/test/runtime/ets/invoke-with-rest.ets
@@ -14,10 +14,10 @@
  */
 
 class A<T> {
-    x: FixedArray<NullishType>
+    x: FixedArray<Any>
     constructor(x: T) {
-        this.x = new NullishType[1]
-        this.x[0] = x as NullishType
+        this.x = new Any[1]
+        this.x[0] = x as Any
     }
 
     static $_invoke<T>(first: T, ...items: T[]): A<T> {
diff --git a/ets2panda/test/runtime/ets/string_from_nullish.ets b/ets2panda/test/runtime/ets/string_from_any.ets
similarity index 97%
rename from ets2panda/test/runtime/ets/string_from_nullish.ets
rename to ets2panda/test/runtime/ets/string_from_any.ets
index e65aa7f70c783a5b389e272f4462939cf308942e..5382086b6865ce7239b109d39fbb3892bc3ddfdc 100644
--- a/ets2panda/test/runtime/ets/string_from_nullish.ets
+++ b/ets2panda/test/runtime/ets/string_from_any.ets
@@ -14,7 +14,7 @@
  */
 
 function main(): int {
-   let z: NullishType = new Number(1);
+   let z: Any = new Number(1);
    let z1 = undefined;
    let z2 = null;
    let z3: Object = new String("0");