[dart2js] Remove references to new-rti/old-rti.

The "new" rti library has been standard for years now and no one should
be passing `--experiment-new-rti` or `--use-old-rti`. We can now clean
up any references to different versions of rtis.

Change-Id: I4421b8943fe5034ed4d259477e8112b25ba0c763
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/416326
Reviewed-by: Nate Biggs <natebiggs@google.com>
Commit-Queue: Mayank Patke <fishythefish@google.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 926f7c2..9d35e01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -77,6 +77,10 @@
 In the future this will likely be a compile-time error and will be entirely
 disallowed.
 
+#### Dart to Javascript Compiler (dart2js)
+
+Removed the `--experiment-new-rti` and `--use-old-rti` flags.
+
 ## 3.7.0
 
 **Released on:** 2025-02-12
diff --git a/benchmarks/SoundSplayTreeSieve/dart/README.md b/benchmarks/SoundSplayTreeSieve/dart/README.md
index 7a8baec..d60a944 100644
--- a/benchmarks/SoundSplayTreeSieve/dart/README.md
+++ b/benchmarks/SoundSplayTreeSieve/dart/README.md
@@ -15,17 +15,17 @@
 
 **Dart2JS**
 ```
-$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --experiment-new-rti --out=soundsplay_d2js.js
+$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --out=soundsplay_d2js.js
 $ third_party/d8/linux/d8 soundsplay_d2js.js
 ```
 
 **Dart2JS (Omit implicit checks)**
 ```
-$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --experiment-new-rti --omit-implicit-checks --out=soundsplay_d2js_omit.js --lax-runtime-type-to-string
+$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --omit-implicit-checks --out=soundsplay_d2js_omit.js --lax-runtime-type-to-string
 $ third_party/d8/linux/d8 soundsplay_d2js_omit.js
 ```
 
 **DDK**
 ```
 $ pkg/dev_compiler/tool/ddb -d -r chrome --enable-experiment=variance -k benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart
-```
\ No newline at end of file
+```
diff --git a/benchmarks/SoundSplayTreeSieve/dart2/README.md b/benchmarks/SoundSplayTreeSieve/dart2/README.md
index 7a8baec..d60a944 100644
--- a/benchmarks/SoundSplayTreeSieve/dart2/README.md
+++ b/benchmarks/SoundSplayTreeSieve/dart2/README.md
@@ -15,17 +15,17 @@
 
 **Dart2JS**
 ```
-$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --experiment-new-rti --out=soundsplay_d2js.js
+$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --out=soundsplay_d2js.js
 $ third_party/d8/linux/d8 soundsplay_d2js.js
 ```
 
 **Dart2JS (Omit implicit checks)**
 ```
-$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --experiment-new-rti --omit-implicit-checks --out=soundsplay_d2js_omit.js --lax-runtime-type-to-string
+$ sdk/bin/dart2js_developer benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart --enable-experiment=variance --omit-implicit-checks --out=soundsplay_d2js_omit.js --lax-runtime-type-to-string
 $ third_party/d8/linux/d8 soundsplay_d2js_omit.js
 ```
 
 **DDK**
 ```
 $ pkg/dev_compiler/tool/ddb -d -r chrome --enable-experiment=variance -k benchmarks/SoundSplayTreeSieve/dart/SoundSplayTreeSieve.dart
-```
\ No newline at end of file
+```
diff --git a/pkg/compiler/lib/src/commandline_options.dart b/pkg/compiler/lib/src/commandline_options.dart
index 9dc830f..e9299e1 100644
--- a/pkg/compiler/lib/src/commandline_options.dart
+++ b/pkg/compiler/lib/src/commandline_options.dart
@@ -58,8 +58,6 @@
   static const String experimentCallInstrumentation =
       '--experiment-call-instrumentation';
 
-  static const String experimentNewRti = '--experiment-new-rti';
-
   static const String enableLanguageExperiments = '--enable-experiment';
 
   static const String fastStartup = '--fast-startup';
@@ -107,7 +105,6 @@
       '--experimental-trust-js-interop-type-annotations';
   static const String useMultiSourceInfo = '--use-multi-source-info';
   static const String useNewSourceInfo = '--use-new-source-info';
-  static const String useOldRti = '--use-old-rti';
   static const String useSimpleLoadIds = '--simple-load-ids';
   static const String verbose = '--verbose';
   static const String verbosity = '--verbosity';
diff --git a/pkg/compiler/lib/src/common/elements.dart b/pkg/compiler/lib/src/common/elements.dart
index e68c862..c381ce5 100644
--- a/pkg/compiler/lib/src/common/elements.dart
+++ b/pkg/compiler/lib/src/common/elements.dart
@@ -1109,7 +1109,7 @@
   FunctionEntity get specializedAsStringNullable =>
       _findRtiFunction('_asStringQ');
 
-  FunctionEntity get instantiatedGenericFunctionTypeNewRti =>
+  FunctionEntity get instantiatedGenericFunctionType =>
       _findRtiFunction('instantiatedGenericFunctionType');
 
   FunctionEntity get closureFunctionType =>
diff --git a/pkg/compiler/lib/src/dart2js.dart b/pkg/compiler/lib/src/dart2js.dart
index c08a302..184131c 100644
--- a/pkg/compiler/lib/src/dart2js.dart
+++ b/pkg/compiler/lib/src/dart2js.dart
@@ -531,7 +531,6 @@
     _OneOption(Flags.generateCodeWithCompileTimeErrors, ignoreOption),
     _OneOption(Flags.useMultiSourceInfo, passThrough),
     _OneOption(Flags.useNewSourceInfo, passThrough),
-    _OneOption(Flags.useOldRti, passThrough),
     _OneOption(Flags.useSimpleLoadIds, passThrough),
     _OneOption(Flags.testMode, passThrough),
     _OneOption('${Flags.dumpSsa}=.+', passThrough),
@@ -552,7 +551,6 @@
     _OneOption(Flags.experimentToBoolean, passThrough),
     _OneOption(Flags.experimentUnreachableMethodsThrow, passThrough),
     _OneOption(Flags.experimentCallInstrumentation, passThrough),
-    _OneOption(Flags.experimentNewRti, ignoreOption),
     _OneOption('${Flags.mergeFragmentsThreshold}=.+', passThrough),
 
     // Wire up feature flags.
diff --git a/pkg/compiler/lib/src/deferred_load/entity_data_info.dart b/pkg/compiler/lib/src/deferred_load/entity_data_info.dart
index 98ee3927..908fd96 100644
--- a/pkg/compiler/lib/src/deferred_load/entity_data_info.dart
+++ b/pkg/compiler/lib/src/deferred_load/entity_data_info.dart
@@ -237,7 +237,7 @@
         break;
       case TypeUseKind.rtiValue:
       case TypeUseKind.typeArgument:
-      case TypeUseKind.namedTypeVariableNewRti:
+      case TypeUseKind.namedTypeVariable:
       case TypeUseKind.constructorReference:
         failedAt(parent!, "Unexpected type use: $typeUse.");
     }
diff --git a/pkg/compiler/lib/src/js_backend/backend_impact.dart b/pkg/compiler/lib/src/js_backend/backend_impact.dart
index df333c9..4094674 100644
--- a/pkg/compiler/lib/src/js_backend/backend_impact.dart
+++ b/pkg/compiler/lib/src/js_backend/backend_impact.dart
@@ -98,7 +98,7 @@
 
   late final BackendImpact getRuntimeTypeArgument = BackendImpact(
     globalUses: [],
-    otherImpacts: [newRtiImpact],
+    otherImpacts: [rtiImpact],
   );
 
   late final BackendImpact computeSignature = BackendImpact(
@@ -153,7 +153,7 @@
 
   late final BackendImpact asCheck = BackendImpact(
     staticUses: [],
-    otherImpacts: [newRtiImpact],
+    otherImpacts: [rtiImpact],
   );
 
   late final BackendImpact stringValues = BackendImpact(
@@ -322,7 +322,7 @@
   );
 
   late final BackendImpact typeCheck = BackendImpact(
-    otherImpacts: [boolValues, newRtiImpact],
+    otherImpacts: [boolValues, rtiImpact],
   );
 
   late final BackendImpact genericTypeCheck = BackendImpact(
@@ -330,26 +330,26 @@
       // TODO(johnniwinther): Investigate why this is needed.
       _commonElements.setArrayType,
     ],
-    otherImpacts: [listValues, getRuntimeTypeArgument, newRtiImpact],
+    otherImpacts: [listValues, getRuntimeTypeArgument, rtiImpact],
   );
 
   late final BackendImpact genericIsCheck = BackendImpact(
-    otherImpacts: [intValues, newRtiImpact],
+    otherImpacts: [intValues, rtiImpact],
   );
 
   late final BackendImpact typeVariableTypeCheck = BackendImpact(
     staticUses: [],
-    otherImpacts: [newRtiImpact],
+    otherImpacts: [rtiImpact],
   );
 
   late final BackendImpact functionTypeCheck = BackendImpact(
     staticUses: [/*helpers.functionTypeTestMetaHelper*/],
-    otherImpacts: [newRtiImpact],
+    otherImpacts: [rtiImpact],
   );
 
   late final BackendImpact futureOrTypeCheck = BackendImpact(
     staticUses: [],
-    otherImpacts: [newRtiImpact],
+    otherImpacts: [rtiImpact],
   );
 
   late final BackendImpact nativeTypeCheck = BackendImpact(
@@ -359,7 +359,7 @@
       // [:defineProperty:] is compiled.
       _commonElements.defineProperty,
     ],
-    otherImpacts: [newRtiImpact],
+    otherImpacts: [rtiImpact],
   );
 
   late final BackendImpact closure = BackendImpact(
@@ -532,7 +532,7 @@
       _genericInstantiation[typeArgumentCount] ??= BackendImpact(
         staticUses: [
           _commonElements.getInstantiateFunction(typeArgumentCount),
-          _commonElements.instantiatedGenericFunctionTypeNewRti,
+          _commonElements.instantiatedGenericFunctionType,
           _commonElements.closureFunctionType,
         ],
         instantiatedClasses: [
@@ -541,7 +541,7 @@
       );
 
   // TODO(sra): Split into refined impacts.
-  late final BackendImpact newRtiImpact = BackendImpact(
+  late final BackendImpact rtiImpact = BackendImpact(
     staticUses: [
       if (_options.interopNullAssertions) _commonElements.interopNullAssertion,
       _commonElements.findType,
diff --git a/pkg/compiler/lib/src/js_backend/codegen_listener.dart b/pkg/compiler/lib/src/js_backend/codegen_listener.dart
index bd63d78..eb9653d 100644
--- a/pkg/compiler/lib/src/js_backend/codegen_listener.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen_listener.dart
@@ -45,7 +45,7 @@
   final CodegenWorldBuilder _worldBuilder;
 
   bool _isNoSuchMethodUsed = false;
-  bool _isNewRtiUsed = false;
+  bool _isRtiUsed = false;
 
   CodegenEnqueuerListener(
     this._options,
@@ -149,30 +149,30 @@
     }
 
     // TODO(fishythefish): Avoid registering unnecessary impacts.
-    if (!_isNewRtiUsed) {
-      WorldImpactBuilderImpl newRtiImpact = WorldImpactBuilderImpl();
-      newRtiImpact.registerStaticUse(
+    if (!_isRtiUsed) {
+      WorldImpactBuilderImpl rtiImpact = WorldImpactBuilderImpl();
+      rtiImpact.registerStaticUse(
         StaticUse.staticInvoke(
           _commonElements.rtiAddRulesMethod,
           CallStructure.twoArgs,
         ),
       );
-      newRtiImpact.registerStaticUse(
+      rtiImpact.registerStaticUse(
         StaticUse.staticInvoke(
           _commonElements.rtiAddErasedTypesMethod,
           CallStructure.twoArgs,
         ),
       );
       if (_options.enableVariance) {
-        newRtiImpact.registerStaticUse(
+        rtiImpact.registerStaticUse(
           StaticUse.staticInvoke(
             _commonElements.rtiAddTypeParameterVariancesMethod,
             CallStructure.twoArgs,
           ),
         );
       }
-      enqueuer.applyImpact(newRtiImpact);
-      _isNewRtiUsed = true;
+      enqueuer.applyImpact(rtiImpact);
+      _isRtiUsed = true;
     }
 
     if (_nativeData.isAllowInteropUsed) {
@@ -257,7 +257,7 @@
 
       impactBuilder.registerStaticUse(
         StaticUse.staticInvoke(
-          _commonElements.instantiatedGenericFunctionTypeNewRti,
+          _commonElements.instantiatedGenericFunctionType,
           CallStructure.twoArgs,
         ),
       );
diff --git a/pkg/compiler/lib/src/js_backend/constant_emitter.dart b/pkg/compiler/lib/src/js_backend/constant_emitter.dart
index 5ed468f..6a91a64 100644
--- a/pkg/compiler/lib/src/js_backend/constant_emitter.dart
+++ b/pkg/compiler/lib/src/js_backend/constant_emitter.dart
@@ -273,7 +273,7 @@
         .toList(growable: false);
     js_ast.ArrayInitializer array = js_ast.ArrayInitializer(elements);
     js_ast.Expression value = _makeConstantList(array);
-    return maybeAddListTypeArgumentsNewRti(constant, constant.type, value);
+    return maybeAddListTypeArguments(constant, constant.type, value);
   }
 
   @override
@@ -296,7 +296,7 @@
         _constantReferenceGenerator(constant.indexObject!),
         js.number(constant.length),
         if (_rtiNeed.classNeedsTypeArguments(classElement))
-          _reifiedTypeNewRti(sourceType),
+          _reifiedType(sourceType),
       ];
       js_ast.Expression constructor = _emitter.constructorAccess(classElement);
       return js_ast.New(constructor, arguments);
@@ -313,7 +313,7 @@
             _constantReferenceGenerator(value),
         ]),
         if (_rtiNeed.classNeedsTypeArguments(classElement))
-          _reifiedTypeNewRti(sourceType),
+          _reifiedType(sourceType),
       ];
       js_ast.Expression constructor = _emitter.constructorAccess(classElement);
       return js_ast.New(constructor, arguments);
@@ -412,7 +412,7 @@
     }
 
     if (_rtiNeed.classNeedsTypeArguments(classElement)) {
-      arguments.add(_reifiedTypeNewRti(constant.type));
+      arguments.add(_reifiedType(constant.type));
     }
 
     js_ast.Expression constructor = _emitter.constructorAccess(classElement);
@@ -491,7 +491,7 @@
       }
     });
     if (_rtiNeed.classNeedsTypeArguments(constant.type.element)) {
-      fields.add(_reifiedTypeNewRti(constant.type));
+      fields.add(_reifiedType(constant.type));
     }
     return js_ast.New(constructor, fields);
   }
@@ -527,7 +527,7 @@
       _constantReferenceGenerator(constant.function),
     ];
     fields.add(
-      _reifiedTypeNewRti(
+      _reifiedType(
         _commonElements.dartTypes.interfaceType(cls, constant.typeArguments),
       ),
     );
@@ -539,7 +539,7 @@
     return rawJavaScript.replaceAll(commentRE, '');
   }
 
-  js_ast.Expression maybeAddListTypeArgumentsNewRti(
+  js_ast.Expression maybeAddListTypeArguments(
     ConstantValue constant,
     InterfaceType type,
     js_ast.Expression value,
@@ -548,13 +548,13 @@
     if (_rtiNeed.classNeedsTypeArguments(type.element)) {
       return js_ast.Call(getHelperProperty(_commonElements.setArrayType), [
         value,
-        _reifiedTypeNewRti(type),
+        _reifiedType(type),
       ]);
     }
     return value;
   }
 
-  js_ast.Expression _reifiedTypeNewRti(DartType type) {
+  js_ast.Expression _reifiedType(DartType type) {
     assert(!type.containsTypeVariables);
     return TypeReference(TypeExpressionRecipe(type))..forConstant = true;
   }
diff --git a/pkg/compiler/lib/src/js_backend/enqueuer.dart b/pkg/compiler/lib/src/js_backend/enqueuer.dart
index ccc3648..1f710b6 100644
--- a/pkg/compiler/lib/src/js_backend/enqueuer.dart
+++ b/pkg/compiler/lib/src/js_backend/enqueuer.dart
@@ -240,8 +240,8 @@
         break;
       case TypeUseKind.constInstantiation:
         failedAt(currentElementSpannable, "Unexpected type use: $typeUse.");
-      case TypeUseKind.namedTypeVariableNewRti:
-        _registerNamedTypeVariableNewRti(type as TypeVariableType);
+      case TypeUseKind.namedTypeVariable:
+        _registerNamedTypeVariable(type as TypeVariableType);
         break;
     }
   }
@@ -260,8 +260,8 @@
     worldBuilder.registerIsCheck(type);
   }
 
-  void _registerNamedTypeVariableNewRti(TypeVariableType type) {
-    worldBuilder.registerNamedTypeVariableNewRti(type);
+  void _registerNamedTypeVariable(TypeVariableType type) {
+    worldBuilder.registerNamedTypeVariable(type);
   }
 
   void _registerClosurizedMember(FunctionEntity element) {
diff --git a/pkg/compiler/lib/src/js_backend/runtime_types_new.dart b/pkg/compiler/lib/src/js_backend/runtime_types_new.dart
index 77b817f..6b73c23 100644
--- a/pkg/compiler/lib/src/js_backend/runtime_types_new.dart
+++ b/pkg/compiler/lib/src/js_backend/runtime_types_new.dart
@@ -259,7 +259,7 @@
         return;
       }
 
-      js_ast.Name name = _emitter.typeVariableAccessNewRti(type.element);
+      js_ast.Name name = _emitter.typeVariableAccess(type.element);
       _emitName(name);
       typeVariables.add(type);
       return;
@@ -295,7 +295,7 @@
 
   @override
   void visitInterfaceType(InterfaceType type, _) {
-    js_ast.Name name = _emitter.typeAccessNewRti(type.element);
+    js_ast.Name name = _emitter.typeAccess(type.element);
     if (type.typeArguments.isEmpty) {
       // Push the name, which is later converted by an implicit toType
       // operation.
@@ -543,11 +543,11 @@
     MapEntry<ClassEntity, ClassEntity> redirection,
   ) => js.concatenateStrings([
     _doubleQuote,
-    _emitter.typeAccessNewRti(redirection.key),
+    _emitter.typeAccess(redirection.key),
     _doubleQuote,
     _colon,
     _doubleQuote,
-    _emitter.typeAccessNewRti(redirection.value),
+    _emitter.typeAccess(redirection.value),
     _doubleQuote,
   ]);
 
@@ -555,7 +555,7 @@
     MapEntry<InterfaceType, _RulesetEntry> entry,
   ) => js.concatenateStrings([
     _doubleQuote,
-    _emitter.typeAccessNewRti(entry.key.element),
+    _emitter.typeAccess(entry.key.element),
     _doubleQuote,
     _colon,
     _leftBrace,
@@ -576,7 +576,7 @@
     InterfaceType supertype,
   ) => js.concatenateStrings([
     _doubleQuote,
-    _emitter.typeAccessNewRti(supertype.element),
+    _emitter.typeAccess(supertype.element),
     _doubleQuote,
     _colon,
     _leftBracket,
@@ -596,7 +596,7 @@
     DartType supertypeArgument,
   ) => js.concatenateStrings([
     _doubleQuote,
-    _emitter.typeVariableAccessNewRti(typeVariable.element),
+    _emitter.typeVariableAccess(typeVariable.element),
     _doubleQuote,
     _colon,
     _encodeSupertypeArgument(targetType, supertypeArgument),
@@ -627,7 +627,7 @@
     MapEntry<ClassEntity, int> entry,
   ) => js.concatenateStrings([
     _doubleQuote,
-    _emitter.typeAccessNewRti(entry.key),
+    _emitter.typeAccess(entry.key),
     _doubleQuote,
     _colon,
     js.number(entry.value),
@@ -648,7 +648,7 @@
     MapEntry<ClassEntity, List<Variance>> classEntry,
   ) => js.concatenateStrings([
     _doubleQuote,
-    _emitter.typeAccessNewRti(classEntry.key),
+    _emitter.typeAccess(classEntry.key),
     _doubleQuote,
     _colon,
     _leftBracket,
@@ -710,4 +710,4 @@
 
 bool mustCheckAllSubtypes(JClosedWorld world, ClassEntity cls) =>
     world.isUsedAsMixin(cls) ||
-    world.extractTypeArgumentsInterfacesNewRti.contains(cls);
+    world.extractTypeArgumentsInterfaces.contains(cls);
diff --git a/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart b/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart
index 5b70270..5b1f4df 100644
--- a/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart
+++ b/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart
@@ -178,10 +178,10 @@
   js_ast.Expression constructorAccess(ClassEntity e);
 
   /// Returns the JS name representing the type [e].
-  js_ast.Name typeAccessNewRti(ClassEntity e);
+  js_ast.Name typeAccess(ClassEntity e);
 
   /// Returns the JS name representing the type variable [e].
-  js_ast.Name typeVariableAccessNewRti(TypeVariableEntity e);
+  js_ast.Name typeVariableAccess(TypeVariableEntity e);
 
   /// Returns the JS code for accessing the embedded [global].
   js_ast.Expression generateEmbeddedGlobalAccess(String global);
diff --git a/pkg/compiler/lib/src/js_emitter/instantiation_stub_generator.dart b/pkg/compiler/lib/src/js_emitter/instantiation_stub_generator.dart
index 46e64e9..78003e5 100644
--- a/pkg/compiler/lib/src/js_emitter/instantiation_stub_generator.dart
+++ b/pkg/compiler/lib/src/js_emitter/instantiation_stub_generator.dart
@@ -114,7 +114,7 @@
   ///
   /// ```
   /// $signature:: function() {
-  ///   return H.instantiatedGenericFunctionTypeNewRti(
+  ///   return H.instantiatedGenericFunctionType(
   ///       H.closureFunctionType(this._genericClosure),
   ///       this.$ti);
   /// }
@@ -124,7 +124,7 @@
       _namer.fixedNames.operatorSignature,
     );
 
-    js_ast.Fun function = _generateSignatureNewRti(functionField);
+    js_ast.Fun function = _generateSignature(functionField);
 
     // TODO(sra): Generate source information for stub that has no member.
     // TODO(sra): .withSourceInformation(sourceInformation);
@@ -137,10 +137,10 @@
     );
   }
 
-  js_ast.Fun _generateSignatureNewRti(FieldEntity functionField) =>
+  js_ast.Fun _generateSignature(FieldEntity functionField) =>
       js('function() { return #(#(this.#), this.#); }', [
             _emitter.staticFunctionAccess(
-              _commonElements.instantiatedGenericFunctionTypeNewRti,
+              _commonElements.instantiatedGenericFunctionType,
             ),
             _emitter.staticFunctionAccess(_commonElements.closureFunctionType),
             _namer.instanceFieldPropertyName(functionField),
diff --git a/pkg/compiler/lib/src/js_emitter/metadata_collector.dart b/pkg/compiler/lib/src/js_emitter/metadata_collector.dart
index 00ae9ad..b61e5dc 100644
--- a/pkg/compiler/lib/src/js_emitter/metadata_collector.dart
+++ b/pkg/compiler/lib/src/js_emitter/metadata_collector.dart
@@ -145,7 +145,7 @@
     return _addTypeInOutputUnit(type, outputUnit);
   }
 
-  js_ast.Expression _computeTypeRepresentationNewRti(DartType type) {
+  js_ast.Expression _computeTypeRepresentation(DartType type) {
     return _rtiRecipeEncoder.encodeGroundRecipe(
       _emitter,
       TypeExpressionRecipe(type),
@@ -156,7 +156,7 @@
     final typeMap = _typesMap[outputUnit] ??= {};
     final metadataEntryList =
         (typeMap[type] ??= [
-          BoundMetadataEntry(_computeTypeRepresentationNewRti(type)),
+          BoundMetadataEntry(_computeTypeRepresentation(type)),
         ]);
     return metadataEntryList.single;
   }
diff --git a/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart b/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
index 1fd0591..33ca725 100644
--- a/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
+++ b/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
@@ -101,7 +101,7 @@
   /// True if the program should store function types in the metadata.
   bool _storeFunctionTypesInMetadata = false;
 
-  final Set<TypeVariableType> _lateNamedTypeVariablesNewRti = {};
+  final Set<TypeVariableType> _lateNamedTypeVariables = {};
 
   ClassHierarchy get _classHierarchy => _closedWorld.classHierarchy;
   DartTypes get _dartTypes => _closedWorld.dartTypes;
@@ -262,7 +262,7 @@
 
     _markEagerClasses();
 
-    associateNamedTypeVariablesNewRti();
+    associateNamedTypeVariables();
 
     bool needsNativeSupport =
         _nativeCodegenEnqueuer.hasInstantiatedNativeClasses ||
@@ -914,9 +914,9 @@
         () => ClassTypeData(cls, _rtiChecks.requiredChecks[cls]),
       );
 
-  void associateNamedTypeVariablesNewRti() {
-    for (TypeVariableType typeVariable in _codegenWorld.namedTypeVariablesNewRti
-        .union(_lateNamedTypeVariablesNewRti)) {
+  void associateNamedTypeVariables() {
+    for (TypeVariableType typeVariable in _codegenWorld.namedTypeVariables
+        .union(_lateNamedTypeVariables)) {
       final declaration = typeVariable.element.typeDeclaration as ClassEntity;
       Iterable<ClassEntity> subtypes =
           new_rti.mustCheckAllSubtypes(_closedWorld, declaration)
@@ -1086,12 +1086,6 @@
     ClassEntity? enclosingClass,
     FunctionType type,
     OutputUnit outputUnit,
-  ) => _generateFunctionTypeNewRti(enclosingClass, type, outputUnit);
-
-  js.Expression _generateFunctionTypeNewRti(
-    ClassEntity? enclosingClass,
-    FunctionType type,
-    OutputUnit outputUnit,
   ) {
     InterfaceType? enclosingType;
     if (enclosingClass != null && type.containsTypeVariables) {
@@ -1118,7 +1112,7 @@
         FullTypeEnvironmentStructure(classType: enclosingType),
         TypeExpressionRecipe(type),
       );
-      _lateNamedTypeVariablesNewRti.addAll(encoding.typeVariables);
+      _lateNamedTypeVariables.addAll(encoding.typeVariables);
       return encoding.recipe;
     } else {
       return _task.metadataCollector.reifyType(type, outputUnit);
diff --git a/pkg/compiler/lib/src/js_emitter/startup_emitter/emitter.dart b/pkg/compiler/lib/src/js_emitter/startup_emitter/emitter.dart
index 34e9ec0..4edfb3a 100644
--- a/pkg/compiler/lib/src/js_emitter/startup_emitter/emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/startup_emitter/emitter.dart
@@ -79,12 +79,12 @@
   }
 
   @override
-  js.Name typeAccessNewRti(ClassEntity element) {
+  js.Name typeAccess(ClassEntity element) {
     return _namer.className(element);
   }
 
   @override
-  js.Name typeVariableAccessNewRti(TypeVariableEntity element) {
+  js.Name typeVariableAccess(TypeVariableEntity element) {
     return _namer.globalNameForInterfaceTypeVariable(element);
   }
 
diff --git a/pkg/compiler/lib/src/js_model/js_world.dart b/pkg/compiler/lib/src/js_model/js_world.dart
index 3de8f3d..773602a 100644
--- a/pkg/compiler/lib/src/js_model/js_world.dart
+++ b/pkg/compiler/lib/src/js_model/js_world.dart
@@ -101,7 +101,7 @@
 
   /// Returns the set of interfaces passed as type arguments to the internal
   /// `extractTypeArguments` function.
-  final Set<ClassEntity> extractTypeArgumentsInterfacesNewRti;
+  final Set<ClassEntity> extractTypeArgumentsInterfaces;
 
   final ClassHierarchy classHierarchy;
 
@@ -133,7 +133,7 @@
     this.liveAbstractInstanceMembers,
     this.assignedInstanceMembers,
     this.processedMembers,
-    this.extractTypeArgumentsInterfacesNewRti,
+    this.extractTypeArgumentsInterfaces,
     this.mixinUses,
     this.typesImplementedBySubclasses,
     this.classHierarchy,
@@ -192,7 +192,7 @@
 
     Set<ClassEntity> implementedClasses = source.readClasses().toSet();
     Set<ClassEntity> liveNativeClasses = source.readClasses().toSet();
-    Set<ClassEntity> extractTypeArgumentsInterfacesNewRti =
+    Set<ClassEntity> extractTypeArgumentsInterfaces =
         source.readClasses().toSet();
     Set<MemberEntity> liveInstanceMembers = source.readMembers().toSet();
     Set<MemberEntity> liveAbstractInstanceMembers =
@@ -242,7 +242,7 @@
       liveAbstractInstanceMembers,
       assignedInstanceMembers,
       processedMembers,
-      extractTypeArgumentsInterfacesNewRti,
+      extractTypeArgumentsInterfaces,
       mixinUses,
       typesImplementedBySubclasses,
       classHierarchy,
@@ -268,7 +268,7 @@
     noSuchMethodData.writeToDataSink(sink);
     sink.writeClasses(implementedClasses);
     sink.writeClasses(liveNativeClasses);
-    sink.writeClasses(extractTypeArgumentsInterfacesNewRti);
+    sink.writeClasses(extractTypeArgumentsInterfaces);
     sink.writeMembers(liveInstanceMembers);
     sink.writeMembers(liveAbstractInstanceMembers);
     sink.writeMembers(assignedInstanceMembers);
@@ -704,7 +704,7 @@
 
   /// Registers [interface] as a type argument to `extractTypeArguments`.
   void registerExtractTypeArguments(ClassEntity interface) {
-    extractTypeArgumentsInterfacesNewRti.add(interface);
+    extractTypeArgumentsInterfaces.add(interface);
   }
 
   late final Set<ClassEntity> _defaultSuperclasses = {
diff --git a/pkg/compiler/lib/src/js_model/js_world_builder.dart b/pkg/compiler/lib/src/js_model/js_world_builder.dart
index e05dc73..f0cc48c 100644
--- a/pkg/compiler/lib/src/js_model/js_world_builder.dart
+++ b/pkg/compiler/lib/src/js_model/js_world_builder.dart
@@ -150,7 +150,7 @@
       closedWorld.liveMemberUsage.keys,
     );
 
-    Set<ClassEntity> extractTypeArgumentsInterfacesNewRti = {};
+    Set<ClassEntity> extractTypeArgumentsInterfaces = {};
 
     RuntimeTypesNeed rtiNeed;
 
@@ -281,7 +281,7 @@
       liveAbstractInstanceMembers,
       assignedInstanceMembers,
       processedMembers,
-      extractTypeArgumentsInterfacesNewRti,
+      extractTypeArgumentsInterfaces,
       mixinUses,
       typesImplementedBySubclasses,
       ClassHierarchyImpl(
diff --git a/pkg/compiler/lib/src/kernel/kernel_world.dart b/pkg/compiler/lib/src/kernel/kernel_world.dart
index 34c3f47..03a3199 100644
--- a/pkg/compiler/lib/src/kernel/kernel_world.dart
+++ b/pkg/compiler/lib/src/kernel/kernel_world.dart
@@ -61,7 +61,7 @@
   final Set<DartType> isChecks;
 
   @override
-  final Set<TypeVariableType> namedTypeVariablesNewRti;
+  final Set<TypeVariableType> namedTypeVariables;
 
   final Map<Entity, Set<DartType>> staticTypeArgumentDependencies;
 
@@ -114,7 +114,7 @@
     required this.classHierarchy,
     required this.annotationsData,
     required this.isChecks,
-    required this.namedTypeVariablesNewRti,
+    required this.namedTypeVariables,
     required this.staticTypeArgumentDependencies,
     required this.dynamicTypeArgumentDependencies,
     required this.typeVariableTypeLiterals,
diff --git a/pkg/compiler/lib/src/resolution/enqueuer.dart b/pkg/compiler/lib/src/resolution/enqueuer.dart
index 60c684d..1a128a3 100644
--- a/pkg/compiler/lib/src/resolution/enqueuer.dart
+++ b/pkg/compiler/lib/src/resolution/enqueuer.dart
@@ -256,8 +256,8 @@
       case TypeUseKind.typeArgument:
       case TypeUseKind.constructorReference:
         failedAt(currentElementSpannable, "Unexpected type use: $typeUse.");
-      case TypeUseKind.namedTypeVariableNewRti:
-        _registerNamedTypeVariableNewRti(type as TypeVariableType);
+      case TypeUseKind.namedTypeVariable:
+        _registerNamedTypeVariable(type as TypeVariableType);
         break;
     }
   }
@@ -270,8 +270,8 @@
     worldBuilder.registerIsCheck(type);
   }
 
-  void _registerNamedTypeVariableNewRti(TypeVariableType type) {
-    worldBuilder.registerNamedTypeVariableNewRti(type);
+  void _registerNamedTypeVariable(TypeVariableType type) {
+    worldBuilder.registerNamedTypeVariable(type);
   }
 
   void _registerClosurizedMember(FunctionEntity element) {
diff --git a/pkg/compiler/lib/src/ssa/builder.dart b/pkg/compiler/lib/src/ssa/builder.dart
index 849e50e..646a5cd 100644
--- a/pkg/compiler/lib/src/ssa/builder.dart
+++ b/pkg/compiler/lib/src/ssa/builder.dart
@@ -568,7 +568,7 @@
               "$targetElement inside a non-closure: $target",
             );
           }
-          _buildMethodSignatureNewRti(originalClosureNode);
+          _buildMethodSignature(originalClosureNode);
           break;
         case MemberKind.parameterStub:
           _buildParameterStub(
@@ -1380,7 +1380,7 @@
   }
 
   /// Constructs a special signature function for a closure.
-  void _buildMethodSignatureNewRti(ir.FunctionNode originalClosureNode) {
+  void _buildMethodSignature(ir.FunctionNode originalClosureNode) {
     // The signature function has no corresponding ir.Node, so we just use the
     // targetElement to set up the type environment.
     _openFunction(targetElement, checks: TargetChecks.none);
diff --git a/pkg/compiler/lib/src/ssa/codegen.dart b/pkg/compiler/lib/src/ssa/codegen.dart
index 8341e1f..26fabe4 100644
--- a/pkg/compiler/lib/src/ssa/codegen.dart
+++ b/pkg/compiler/lib/src/ssa/codegen.dart
@@ -3880,7 +3880,7 @@
     js.Expression recipe = encoding.recipe;
 
     for (TypeVariableType typeVariable in encoding.typeVariables) {
-      _registry.registerTypeUse(TypeUse.namedTypeVariableNewRti(typeVariable));
+      _registry.registerTypeUse(TypeUse.namedTypeVariable(typeVariable));
     }
 
     final method = _commonElements.rtiEvalMethod;
diff --git a/pkg/compiler/lib/src/ssa/ssa.dart b/pkg/compiler/lib/src/ssa/ssa.dart
index 2e2f98b..01959eb 100644
--- a/pkg/compiler/lib/src/ssa/ssa.dart
+++ b/pkg/compiler/lib/src/ssa/ssa.dart
@@ -250,7 +250,7 @@
   /// added as a function parameter to the rewritten code.
   // TODO(sra): We could also return an empty list if the generator takes no
   // type (e.g. due to rtiNeed optimization).
-  List<js.Expression>? _fetchItemTypeNewRti(
+  List<js.Expression>? _fetchItemType(
     CommonElements commonElements,
     CodegenRegistry registry,
     DartType? type,
@@ -277,7 +277,7 @@
     FunctionEntity startFunction = commonElements.asyncHelperStartSync;
     FunctionEntity completerFactory = commonElements.asyncAwaitCompleterFactory;
 
-    final itemTypeExpression = _fetchItemTypeNewRti(
+    final itemTypeExpression = _fetchItemType(
       commonElements,
       registry,
       elementType,
@@ -353,7 +353,7 @@
     DartType? asyncTypeParameter,
     js.Name name,
   ) {
-    final itemTypeExpression = _fetchItemTypeNewRti(
+    final itemTypeExpression = _fetchItemType(
       commonElements,
       registry,
       asyncTypeParameter,
diff --git a/pkg/compiler/lib/src/universe/codegen_world_builder.dart b/pkg/compiler/lib/src/universe/codegen_world_builder.dart
index 81bfb60..fa9f49f 100644
--- a/pkg/compiler/lib/src/universe/codegen_world_builder.dart
+++ b/pkg/compiler/lib/src/universe/codegen_world_builder.dart
@@ -161,7 +161,7 @@
 
   final Set<DartType> _constTypeLiterals = {};
   final Set<DartType> _liveTypeArguments = {};
-  final Set<TypeVariableType> _namedTypeVariablesNewRti = {};
+  final Set<TypeVariableType> _namedTypeVariables = {};
   final Set<ClassEntity> _constructorReferences = {};
 
   final Map<FunctionEntity, List<JParameterStub>> _parameterStubs = {};
@@ -362,8 +362,8 @@
     _isChecks.add(type);
   }
 
-  void registerNamedTypeVariableNewRti(TypeVariableType type) {
-    _namedTypeVariablesNewRti.add(type);
+  void registerNamedTypeVariable(TypeVariableType type) {
+    _namedTypeVariables.add(type);
   }
 
   void registerStaticUse(StaticUse staticUse, MemberUsedCallback memberUsed) {
@@ -884,7 +884,7 @@
       typeVariableTypeLiterals: typeVariableTypeLiterals,
       instantiatedClasses: instantiatedClasses,
       isChecks: _isChecks,
-      namedTypeVariablesNewRti: _namedTypeVariablesNewRti,
+      namedTypeVariables: _namedTypeVariables,
       instantiatedTypes: _instantiatedTypes,
       liveTypeArguments: _liveTypeArguments,
       compiledConstants: _compiledConstants,
@@ -924,7 +924,7 @@
   final Iterable<DartType> isChecks;
 
   @override
-  final Set<TypeVariableType> namedTypeVariablesNewRti;
+  final Set<TypeVariableType> namedTypeVariables;
 
   @override
   final Iterable<InterfaceType> instantiatedTypes;
@@ -959,7 +959,7 @@
     required this.typeVariableTypeLiterals,
     required this.instantiatedClasses,
     required this.isChecks,
-    required this.namedTypeVariablesNewRti,
+    required this.namedTypeVariables,
     required this.instantiatedTypes,
     required this.liveTypeArguments,
     required Map<FunctionEntity, List<JParameterStub>> parameterStubs,
diff --git a/pkg/compiler/lib/src/universe/resolution_world_builder.dart b/pkg/compiler/lib/src/universe/resolution_world_builder.dart
index 60949af..8fd33d8 100644
--- a/pkg/compiler/lib/src/universe/resolution_world_builder.dart
+++ b/pkg/compiler/lib/src/universe/resolution_world_builder.dart
@@ -241,7 +241,7 @@
   final Set<FieldEntity> _fieldSetters = {};
 
   final Set<DartType> _isChecks = {};
-  final Set<TypeVariableType> _namedTypeVariablesNewRti = {};
+  final Set<TypeVariableType> _namedTypeVariables = {};
 
   final Set<RecordType> _instantiatedRecordTypes = {};
 
@@ -563,8 +563,8 @@
     _isChecks.add(type);
   }
 
-  void registerNamedTypeVariableNewRti(TypeVariableType type) {
-    _namedTypeVariablesNewRti.add(type);
+  void registerNamedTypeVariable(TypeVariableType type) {
+    _namedTypeVariables.add(type);
   }
 
   /// Register the constant [use] with this world builder. Returns `true` if
@@ -1115,7 +1115,7 @@
       localFunctions: _localFunctions,
       instantiatedTypes: instantiatedTypes,
       instantiatedRecordTypes: _instantiatedRecordTypes,
-      namedTypeVariablesNewRti: _namedTypeVariablesNewRti,
+      namedTypeVariables: _namedTypeVariables,
     );
     if (retainDataForTesting) {
       _closedWorldCache = closedWorld;
diff --git a/pkg/compiler/lib/src/universe/use.dart b/pkg/compiler/lib/src/universe/use.dart
index b33ea06..90fa7934 100644
--- a/pkg/compiler/lib/src/universe/use.dart
+++ b/pkg/compiler/lib/src/universe/use.dart
@@ -964,7 +964,7 @@
   parameterCheck,
   rtiValue,
   typeArgument,
-  namedTypeVariableNewRti,
+  namedTypeVariable,
   typeVariableBoundCheck,
 }
 
@@ -1041,7 +1041,7 @@
       case TypeUseKind.typeArgument:
         sb.write('typeArg:');
         break;
-      case TypeUseKind.namedTypeVariableNewRti:
+      case TypeUseKind.namedTypeVariable:
         sb.write('named:');
         break;
       case TypeUseKind.typeVariableBoundCheck:
@@ -1141,8 +1141,8 @@
   }
 
   /// [type] used as a named type variable in a recipe.
-  factory TypeUse.namedTypeVariableNewRti(TypeVariableType type) =>
-      TypeUse.internal(type, TypeUseKind.namedTypeVariableNewRti);
+  factory TypeUse.namedTypeVariable(TypeVariableType type) =>
+      TypeUse.internal(type, TypeUseKind.namedTypeVariable);
 
   /// [type] used as a bound on a type variable.
   factory TypeUse.typeVariableBoundCheck(DartType type) =>
diff --git a/pkg/compiler/lib/src/world.dart b/pkg/compiler/lib/src/world.dart
index a1fbdc0..9f4e1d8 100644
--- a/pkg/compiler/lib/src/world.dart
+++ b/pkg/compiler/lib/src/world.dart
@@ -22,7 +22,7 @@
   Iterable<DartType> get isChecks;
 
   /// All type variables named in recipes.
-  Set<TypeVariableType> get namedTypeVariablesNewRti;
+  Set<TypeVariableType> get namedTypeVariables;
 
   /// All directly instantiated types, that is, the types of
   /// [directlyInstantiatedClasses].
diff --git a/sdk/lib/_internal/js_runtime/lib/instantiation.dart b/sdk/lib/_internal/js_runtime/lib/instantiation.dart
index bcf943f..8baf79f 100644
--- a/sdk/lib/_internal/js_runtime/lib/instantiation.dart
+++ b/sdk/lib/_internal/js_runtime/lib/instantiation.dart
@@ -18,7 +18,7 @@
     if (JS('bool', 'false')) {
       // [instantiatedGenericFunctionType] is called from injected $signature
       // methods with runtime type representations.
-      newRti.instantiatedGenericFunctionType(JS('', '0'), JS('', '0'));
+      rti.instantiatedGenericFunctionType(JS('', '0'), JS('', '0'));
     }
   }
 
@@ -107,133 +107,318 @@
   List get _types => [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12];
 }
 
-final class Instantiation13<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13> extends Instantiation {
+final class Instantiation13<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13
+>
+    extends Instantiation {
   Instantiation13(Closure f) : super(f);
   List get _types => [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13];
 }
 
-final class Instantiation14<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14> extends Instantiation {
+final class Instantiation14<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14
+>
+    extends Instantiation {
   Instantiation14(Closure f) : super(f);
-  List get _types =>
-      [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14];
+  List get _types => [
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+  ];
 }
 
-final class Instantiation15<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15> extends Instantiation {
+final class Instantiation15<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15
+>
+    extends Instantiation {
   Instantiation15(Closure f) : super(f);
-  List get _types =>
-      [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15];
+  List get _types => [
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+  ];
 }
 
-final class Instantiation16<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16> extends Instantiation {
+final class Instantiation16<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16
+>
+    extends Instantiation {
   Instantiation16(Closure f) : super(f);
-  List get _types =>
-      [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16];
+  List get _types => [
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+  ];
 }
 
-final class Instantiation17<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17> extends Instantiation {
+final class Instantiation17<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17
+>
+    extends Instantiation {
   Instantiation17(Closure f) : super(f);
   List get _types => [
-        T1,
-        T2,
-        T3,
-        T4,
-        T5,
-        T6,
-        T7,
-        T8,
-        T9,
-        T10,
-        T11,
-        T12,
-        T13,
-        T14,
-        T15,
-        T16,
-        T17
-      ];
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17,
+  ];
 }
 
-final class Instantiation18<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17, T18> extends Instantiation {
+final class Instantiation18<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17,
+  T18
+>
+    extends Instantiation {
   Instantiation18(Closure f) : super(f);
   List get _types => [
-        T1,
-        T2,
-        T3,
-        T4,
-        T5,
-        T6,
-        T7,
-        T8,
-        T9,
-        T10,
-        T11,
-        T12,
-        T13,
-        T14,
-        T15,
-        T16,
-        T17,
-        T18
-      ];
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17,
+    T18,
+  ];
 }
 
-final class Instantiation19<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17, T18, T19> extends Instantiation {
+final class Instantiation19<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17,
+  T18,
+  T19
+>
+    extends Instantiation {
   Instantiation19(Closure f) : super(f);
   List get _types => [
-        T1,
-        T2,
-        T3,
-        T4,
-        T5,
-        T6,
-        T7,
-        T8,
-        T9,
-        T10,
-        T11,
-        T12,
-        T13,
-        T14,
-        T15,
-        T16,
-        T17,
-        T18,
-        T19
-      ];
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17,
+    T18,
+    T19,
+  ];
 }
 
-final class Instantiation20<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17, T18, T19, T20> extends Instantiation {
+final class Instantiation20<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17,
+  T18,
+  T19,
+  T20
+>
+    extends Instantiation {
   Instantiation20(Closure f) : super(f);
   List get _types => [
-        T1,
-        T2,
-        T3,
-        T4,
-        T5,
-        T6,
-        T7,
-        T8,
-        T9,
-        T10,
-        T11,
-        T12,
-        T13,
-        T14,
-        T15,
-        T16,
-        T17,
-        T18,
-        T19,
-        T20
-      ];
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17,
+    T18,
+    T19,
+    T20,
+  ];
 }
 
 Instantiation instantiate1<T1>(Closure f) {
@@ -273,66 +458,331 @@
 }
 
 Instantiation instantiate10<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(
-    Closure f) {
+  Closure f,
+) {
   return Instantiation10<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(f);
 }
 
 Instantiation instantiate11<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>(
-    Closure f) {
+  Closure f,
+) {
   return Instantiation11<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>(f);
 }
 
 Instantiation instantiate12<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(
-    Closure f) {
+  Closure f,
+) {
   return Instantiation12<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(f);
 }
 
-Instantiation
-    instantiate13<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>(
-        Closure f) {
-  return Instantiation13<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-      T13>(f);
+Instantiation instantiate13<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13
+>(Closure f) {
+  return Instantiation13<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13
+  >(f);
 }
 
-Instantiation
-    instantiate14<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>(
-        Closure f) {
-  return Instantiation14<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
-      T14>(f);
+Instantiation instantiate14<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14
+>(Closure f) {
+  return Instantiation14<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14
+  >(f);
 }
 
-Instantiation instantiate15<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15>(Closure f) {
-  return Instantiation15<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
-      T14, T15>(f);
+Instantiation instantiate15<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15
+>(Closure f) {
+  return Instantiation15<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15
+  >(f);
 }
 
-Instantiation instantiate16<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16>(Closure f) {
-  return Instantiation16<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
-      T14, T15, T16>(f);
+Instantiation instantiate16<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16
+>(Closure f) {
+  return Instantiation16<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16
+  >(f);
 }
 
-Instantiation instantiate17<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17>(Closure f) {
-  return Instantiation17<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
-      T14, T15, T16, T17>(f);
+Instantiation instantiate17<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17
+>(Closure f) {
+  return Instantiation17<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17
+  >(f);
 }
 
-Instantiation instantiate18<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17, T18>(Closure f) {
-  return Instantiation18<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
-      T14, T15, T16, T17, T18>(f);
+Instantiation instantiate18<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17,
+  T18
+>(Closure f) {
+  return Instantiation18<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17,
+    T18
+  >(f);
 }
 
-Instantiation instantiate19<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17, T18, T19>(Closure f) {
-  return Instantiation19<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
-      T14, T15, T16, T17, T18, T19>(f);
+Instantiation instantiate19<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17,
+  T18,
+  T19
+>(Closure f) {
+  return Instantiation19<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17,
+    T18,
+    T19
+  >(f);
 }
 
-Instantiation instantiate20<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
-    T13, T14, T15, T16, T17, T18, T19, T20>(Closure f) {
-  return Instantiation20<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
-      T14, T15, T16, T17, T18, T19, T20>(f);
+Instantiation instantiate20<
+  T1,
+  T2,
+  T3,
+  T4,
+  T5,
+  T6,
+  T7,
+  T8,
+  T9,
+  T10,
+  T11,
+  T12,
+  T13,
+  T14,
+  T15,
+  T16,
+  T17,
+  T18,
+  T19,
+  T20
+>(Closure f) {
+  return Instantiation20<
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+    T16,
+    T17,
+    T18,
+    T19,
+    T20
+  >(f);
 }
diff --git a/sdk/lib/_internal/js_runtime/lib/js_helper.dart b/sdk/lib/_internal/js_runtime/lib/js_helper.dart
index 5404cfe..a207670 100644
--- a/sdk/lib/_internal/js_runtime/lib/js_helper.dart
+++ b/sdk/lib/_internal/js_runtime/lib/js_helper.dart
@@ -64,7 +64,8 @@
 
 import 'dart:_js_names' show unmangleGlobalNameIfPreservedAnyways;
 
-import 'dart:_rti' as newRti
+import 'dart:_rti'
+    as rti
     show
         createRuntimeType,
         evalInInstance,
@@ -111,7 +112,10 @@
 @pragma('dart2js:tryInline')
 getMetadata(int index) {
   return JS_BUILTIN(
-      'returns:var;effects:none;depends:none', JsBuiltin.getMetadata, index);
+    'returns:var;effects:none;depends:none',
+    JsBuiltin.getMetadata,
+    index,
+  );
 }
 
 /// Returns the type of the given [index].
@@ -119,7 +123,10 @@
 @pragma('dart2js:tryInline')
 getType(int index) {
   return JS_BUILTIN(
-      'returns:var;effects:none;depends:none', JsBuiltin.getType, index);
+    'returns:var;effects:none;depends:none',
+    JsBuiltin.getType,
+    index,
+  );
 }
 
 /// No-op method that is called to inform the compiler that preambles might
@@ -152,24 +159,51 @@
   var result = value.toString();
   if (result is! String) {
     throw ArgumentError.value(
-        value, 'object', "toString method returned 'null'");
+      value,
+      'object',
+      "toString method returned 'null'",
+    );
   }
   return result;
 }
 
 // Called from generated code.
 createInvocationMirror(
-    String name, internalName, kind, arguments, argumentNames, types) {
+  String name,
+  internalName,
+  kind,
+  arguments,
+  argumentNames,
+  types,
+) {
   // TODO(sra): [types] (the number of type arguments) could be omitted in the
   // generated stub code to save an argument. Then we would use `types ?? 0`.
   return JSInvocationMirror(
-      name, internalName, kind, arguments, argumentNames, types);
+    name,
+    internalName,
+    kind,
+    arguments,
+    argumentNames,
+    types,
+  );
 }
 
 createUnmangledInvocationMirror(
-    Symbol symbol, internalName, kind, arguments, argumentNames, types) {
+  Symbol symbol,
+  internalName,
+  kind,
+  arguments,
+  argumentNames,
+  types,
+) {
   return JSInvocationMirror(
-      symbol, internalName, kind, arguments, argumentNames, types);
+    symbol,
+    internalName,
+    kind,
+    arguments,
+    argumentNames,
+    types,
+  );
 }
 
 void throwInvalidReflectionError(String memberName) {
@@ -194,8 +228,8 @@
   // overflow. This approach here is simpler than making the compiler smart
   // about how to generate traceHelper calls more carefully.
   JS(
-      '',
-      r'''
+    '',
+    r'''
       (function (id, name) {
         var hook = self.dartCallInstrumentation;
         if (typeof hook === "function") {
@@ -210,8 +244,9 @@
           this.callInstrumentationCache[id] = true;
         }
       })(#, #)''',
-      id,
-      qualifiedName);
+    id,
+    qualifiedName,
+  );
 }
 
 class JSInvocationMirror implements Invocation {
@@ -224,8 +259,14 @@
   final List _namedArgumentNames;
   final int _typeArgumentCount;
 
-  JSInvocationMirror(this._memberName, this._internalName, this._kind,
-      this._arguments, this._namedArgumentNames, this._typeArgumentCount);
+  JSInvocationMirror(
+    this._memberName,
+    this._internalName,
+    this._kind,
+    this._arguments,
+    this._namedArgumentNames,
+    this._typeArgumentCount,
+  );
 
   Symbol get memberName {
     if (_memberName is Symbol) return _memberName;
@@ -242,7 +283,7 @@
     int start = _arguments.length - _typeArgumentCount;
     var list = <Type>[];
     for (int index = 0; index < _typeArgumentCount; index++) {
-      list.add(newRti.createRuntimeType(_arguments[start + index]));
+      list.add(rti.createRuntimeType(_arguments[start + index]));
     }
     return JSArray.markUnmodifiableList(list);
   }
@@ -372,10 +413,11 @@
     // - a Dart double literal
     // We do allow leading or trailing whitespace.
     if (!JS(
-        'bool',
-        r'/^\s*[+-]?(?:Infinity|NaN|'
-            r'(?:\.\d+|\d+(?:\.\d*)?)(?:[eE][+-]?\d+)?)\s*$/.test(#)',
-        source)) {
+      'bool',
+      r'/^\s*[+-]?(?:Infinity|NaN|'
+          r'(?:\.\d+|\d+(?:\.\d*)?)(?:[eE][+-]?\d+)?)\s*$/.test(#)',
+      source,
+    )) {
       return null;
     }
     double result = JS('double', r'parseFloat(#)', source);
@@ -396,14 +438,14 @@
       return source == "true"
           ? true
           : source == "false"
-              ? false
-              : null;
+          ? false
+          : null;
     }
     return _compareIgnoreCase(source, "true")
         ? true
         : _compareIgnoreCase(source, "false")
-            ? false
-            : null;
+        ? false
+        : null;
   }
 
   static bool _compareIgnoreCase(String input, String lowerCaseTarget) {
@@ -426,19 +468,12 @@
   /// them with 'minified:'.
   @pragma('dart2js:noInline')
   static String objectTypeName(Object? object) {
-    return _objectTypeNameNewRti(object);
-  }
-
-  /// Returns the type of [object] as a string (including type arguments).
-  /// Tries to return a sensible name for non-Dart objects.
-  ///
-  /// In minified mode, uses the unminified names if available, otherwise tags
-  /// them with 'minified:'.
-  static String _objectTypeNameNewRti(Object? object) {
     var dartObjectConstructor = JS_BUILTIN(
-        'depends:none;effects:none;', JsBuiltin.dartObjectConstructor);
+      'depends:none;effects:none;',
+      JsBuiltin.dartObjectConstructor,
+    );
     if (JS('bool', '# instanceof #', object, dartObjectConstructor)) {
-      return newRti.instanceTypeName(object);
+      return rti.instanceTypeName(object);
     }
 
     var interceptor = getInterceptor(object);
@@ -473,7 +508,7 @@
       }
     }
 
-    return newRti.instanceTypeName(object);
+    return rti.instanceTypeName(object);
   }
 
   static bool _saneNativeClassName(name) =>
@@ -558,12 +593,13 @@
     for (int i = 0; i < end; i += kMaxApply) {
       int chunkEnd = (i + kMaxApply < end) ? i + kMaxApply : end;
       result = JS(
-          'String',
-          r'# + String.fromCharCode.apply(null, #.slice(#, #))',
-          result,
-          array,
-          i,
-          chunkEnd);
+        'String',
+        r'# + String.fromCharCode.apply(null, #.slice(#, #))',
+        result,
+        array,
+        i,
+        chunkEnd,
+      );
     }
     return result;
   }
@@ -595,7 +631,10 @@
 
   // [start] and [end] are validated.
   static String stringFromNativeUint8List(
-      NativeUint8List charCodes, int start, int end) {
+    NativeUint8List charCodes,
+    int start,
+    int end,
+  ) {
     const kMaxApply = 500;
     if (end <= kMaxApply && start == 0 && end == charCodes.length) {
       return JS('String', r'String.fromCharCode.apply(null, #)', charCodes);
@@ -604,12 +643,13 @@
     for (int i = start; i < end; i += kMaxApply) {
       int chunkEnd = (i + kMaxApply < end) ? i + kMaxApply : end;
       result = JS(
-          'String',
-          r'# + String.fromCharCode.apply(null, #.subarray(#, #))',
-          result,
-          charCodes,
-          i,
-          chunkEnd);
+        'String',
+        r'# + String.fromCharCode.apply(null, #.subarray(#, #))',
+        result,
+        charCodes,
+        i,
+        chunkEnd,
+      );
     }
     return result;
   }
@@ -617,15 +657,22 @@
   static String stringFromCharCode(int charCode) {
     if (0 <= charCode) {
       if (charCode <= 0xffff) {
-        return JS('returns:String;effects:none;depends:none',
-            'String.fromCharCode(#)', charCode);
+        return JS(
+          'returns:String;effects:none;depends:none',
+          'String.fromCharCode(#)',
+          charCode,
+        );
       }
       if (charCode <= 0x10ffff) {
         var bits = charCode - 0x10000;
         var low = 0xDC00 | (bits & 0x3ff);
         var high = 0xD800 | (bits >> 10);
-        return JS('returns:String;effects:none;depends:none',
-            'String.fromCharCode(#, #)', high, low);
+        return JS(
+          'returns:String;effects:none;depends:none',
+          'String.fromCharCode(#, #)',
+          high,
+          low,
+        );
       }
     }
     throw RangeError.range(charCode, 0, 0x10ffff);
@@ -636,8 +683,13 @@
   }
 
   static String flattenString(String str) {
-    return JS('returns:String;depends:none;effects:none;throws:never;gvn:true',
-        '#.charCodeAt(0) == 0 ? # : #', str, str, str);
+    return JS(
+      'returns:String;depends:none;effects:none;throws:never;gvn:true',
+      '#.charCodeAt(0) == 0 ? # : #',
+      str,
+      str,
+      str,
+    );
   }
 
   static String getTimeZoneName(DateTime receiver) {
@@ -651,19 +703,20 @@
     // Internet Explorer 10+ emits the zone name without parenthesis:
     // Example: Thu Oct 31 14:07:44 PDT 2013
     match = JS(
-        'JSArray|Null',
-        // Thu followed by a space.
-        r'/^[A-Z,a-z]{3}\s'
-            // Oct 31 followed by space.
-            r'[A-Z,a-z]{3}\s\d+\s'
-            // Time followed by a space.
-            r'\d{2}:\d{2}:\d{2}\s'
-            // The time zone name followed by a space.
-            r'([A-Z]{3,5})\s'
-            // The year.
-            r'\d{4}$/'
-            '.exec(#.toString())',
-        d);
+      'JSArray|Null',
+      // Thu followed by a space.
+      r'/^[A-Z,a-z]{3}\s'
+          // Oct 31 followed by space.
+          r'[A-Z,a-z]{3}\s\d+\s'
+          // Time followed by a space.
+          r'\d{2}:\d{2}:\d{2}\s'
+          // The time zone name followed by a space.
+          r'([A-Z]{3,5})\s'
+          // The year.
+          r'\d{4}$/'
+          '.exec(#.toString())',
+      d,
+    );
     if (match != null) return match[1];
 
     // IE 9 and Opera don't provide the zone name. We fall back to emitting the
@@ -679,21 +732,25 @@
     // Note that JavaScript's Date and and Dart's DateTime disagree on the sign
     // of the offset. Subtract to avoid -0.0. The offset in minutes could
     // contain 'seconds' as fractional minutes.
-    num offsetInMinutes =
-        JS('num', r'#.getTimezoneOffset()', lazyAsJsDate(receiver));
+    num offsetInMinutes = JS(
+      'num',
+      r'#.getTimezoneOffset()',
+      lazyAsJsDate(receiver),
+    );
     return (0 - offsetInMinutes * 60).toInt();
   }
 
   static int? valueFromDecomposedDate(
-      int years,
-      int month,
-      int day,
-      int hours,
-      int minutes,
-      int seconds,
-      int milliseconds,
-      int microseconds,
-      bool isUtc) {
+    int years,
+    int month,
+    int day,
+    int hours,
+    int minutes,
+    int seconds,
+    int milliseconds,
+    int microseconds,
+    bool isUtc,
+  ) {
     final int MAX_MILLISECONDS_SINCE_EPOCH = 8640000000000000;
     checkInt(years);
     checkInt(month);
@@ -720,11 +777,29 @@
     microseconds = remainder;
     num value;
     if (isUtc) {
-      value = JS('num', r'Date.UTC(#, #, #, #, #, #, #)', years, jsMonth, day,
-          hours, minutes, seconds, milliseconds);
+      value = JS(
+        'num',
+        r'Date.UTC(#, #, #, #, #, #, #)',
+        years,
+        jsMonth,
+        day,
+        hours,
+        minutes,
+        seconds,
+        milliseconds,
+      );
     } else {
-      value = JS('num', r'new Date(#, #, #, #, #, #, #).valueOf()', years,
-          jsMonth, day, hours, minutes, seconds, milliseconds);
+      value = JS(
+        'num',
+        r'new Date(#, #, #, #, #, #, #).valueOf()',
+        years,
+        jsMonth,
+        day,
+        hours,
+        minutes,
+        seconds,
+        milliseconds,
+      );
     }
     if (value.isNaN ||
         value < -MAX_MILLISECONDS_SINCE_EPOCH ||
@@ -738,8 +813,12 @@
   // Lazily keep a JS Date stored in the JS object.
   static lazyAsJsDate(DateTime receiver) {
     if (JS('bool', r'#.date === (void 0)', receiver)) {
-      JS('void', r'#.date = new Date(#)', receiver,
-          receiver.millisecondsSinceEpoch);
+      JS(
+        'void',
+        r'#.date = new Date(#)',
+        receiver,
+        receiver.millisecondsSinceEpoch,
+      );
     }
     return JS('var', r'#.date', receiver);
   }
@@ -818,7 +897,10 @@
   static int getMilliseconds(DateTime receiver) {
     return (receiver.isUtc)
         ? JS(
-            'JSUInt31', r'(#.getUTCMilliseconds() + 0)', lazyAsJsDate(receiver))
+          'JSUInt31',
+          r'(#.getUTCMilliseconds() + 0)',
+          lazyAsJsDate(receiver),
+        )
         : JS('JSUInt31', r'(#.getMilliseconds() + 0)', lazyAsJsDate(receiver));
   }
 
@@ -826,9 +908,10 @@
   @pragma('dart2js:noThrows')
   @pragma('dart2js:noInline')
   static int getWeekday(DateTime receiver) {
-    int weekday = (receiver.isUtc)
-        ? JS('int', r'#.getUTCDay() + 0', lazyAsJsDate(receiver))
-        : JS('int', r'#.getDay() + 0', lazyAsJsDate(receiver));
+    int weekday =
+        (receiver.isUtc)
+            ? JS('int', r'#.getUTCDay() + 0', lazyAsJsDate(receiver))
+            : JS('int', r'#.getDay() + 0', lazyAsJsDate(receiver));
     // Adjust by one because JS weeks start on Sunday.
     return (weekday + 6) % 7 + 1;
   }
@@ -847,8 +930,11 @@
     JS('void', '#[#] = #', object, key, value);
   }
 
-  static functionNoSuchMethod(function, List? positionalArguments,
-      Map<String, dynamic>? namedArguments) {
+  static functionNoSuchMethod(
+    function,
+    List? positionalArguments,
+    Map<String, dynamic>? namedArguments,
+  ) {
     int argumentCount = 0;
     List arguments = [];
     List namedArgumentList = [];
@@ -871,8 +957,16 @@
     String selectorName =
         '${JS_GET_NAME(JsGetName.CALL_PREFIX)}\$$argumentCount$names';
 
-    return function.noSuchMethod(createUnmangledInvocationMirror(
-        #call, selectorName, mirrors.method, arguments, namedArgumentList, 0));
+    return function.noSuchMethod(
+      createUnmangledInvocationMirror(
+        #call,
+        selectorName,
+        mirrors.method,
+        arguments,
+        namedArgumentList,
+        0,
+      ),
+    );
   }
 
   /// Implements [Function.apply] for the lazy and startup emitters.
@@ -906,8 +1000,11 @@
   /// instead. For example, if the catch-all property contains the string
   /// "call$4", then the object's "call$4" property should be used as if it was
   /// the value of the catch-all property.
-  static applyFunction(Function function, List? positionalArguments,
-      Map<String, dynamic>? namedArguments) {
+  static applyFunction(
+    Function function,
+    List? positionalArguments,
+    Map<String, dynamic>? namedArguments,
+  ) {
     // Fast path for common cases.
     if (positionalArguments is JSArray &&
         (namedArguments == null || namedArguments.isEmpty)) {
@@ -926,34 +1023,56 @@
       } else if (argumentCount == 2) {
         String selectorName = JS_GET_NAME(JsGetName.CALL_PREFIX2);
         if (JS('bool', '!!#[#]', function, selectorName)) {
-          return JS('', '#[#](#[0],#[1])', function, selectorName, arguments,
-              arguments);
+          return JS(
+            '',
+            '#[#](#[0],#[1])',
+            function,
+            selectorName,
+            arguments,
+            arguments,
+          );
         }
       } else if (argumentCount == 3) {
         String selectorName = JS_GET_NAME(JsGetName.CALL_PREFIX3);
         if (JS('bool', '!!#[#]', function, selectorName)) {
-          return JS('', '#[#](#[0],#[1],#[2])', function, selectorName,
-              arguments, arguments, arguments);
+          return JS(
+            '',
+            '#[#](#[0],#[1],#[2])',
+            function,
+            selectorName,
+            arguments,
+            arguments,
+            arguments,
+          );
         }
       } else if (argumentCount == 4) {
         String selectorName = JS_GET_NAME(JsGetName.CALL_PREFIX4);
         if (JS('bool', '!!#[#]', function, selectorName)) {
-          return JS('', '#[#](#[0],#[1],#[2],#[3])', function, selectorName,
-              arguments, arguments, arguments, arguments);
+          return JS(
+            '',
+            '#[#](#[0],#[1],#[2],#[3])',
+            function,
+            selectorName,
+            arguments,
+            arguments,
+            arguments,
+            arguments,
+          );
         }
       } else if (argumentCount == 5) {
         String selectorName = JS_GET_NAME(JsGetName.CALL_PREFIX5);
         if (JS('bool', '!!#[#]', function, selectorName)) {
           return JS(
-              '',
-              '#[#](#[0],#[1],#[2],#[3],#[4])',
-              function,
-              selectorName,
-              arguments,
-              arguments,
-              arguments,
-              arguments,
-              arguments);
+            '',
+            '#[#](#[0],#[1],#[2],#[3],#[4])',
+            function,
+            selectorName,
+            arguments,
+            arguments,
+            arguments,
+            arguments,
+            arguments,
+          );
         }
       }
       String selectorName =
@@ -967,8 +1086,11 @@
     return _generalApplyFunction(function, positionalArguments, namedArguments);
   }
 
-  static _generalApplyFunction(Function function, List? positionalArguments,
-      Map<String, dynamic>? namedArguments) {
+  static _generalApplyFunction(
+    Function function,
+    List? positionalArguments,
+    Map<String, dynamic>? namedArguments,
+  ) {
     List arguments;
     if (positionalArguments != null) {
       if (positionalArguments is JSArray) {
@@ -982,15 +1104,23 @@
 
     int argumentCount = arguments.length;
 
-    int requiredParameterCount = JS('int', r'#[#]', function,
-        JS_GET_NAME(JsGetName.REQUIRED_PARAMETER_PROPERTY));
+    int requiredParameterCount = JS(
+      'int',
+      r'#[#]',
+      function,
+      JS_GET_NAME(JsGetName.REQUIRED_PARAMETER_PROPERTY),
+    );
 
     if (argumentCount < requiredParameterCount) {
       return functionNoSuchMethod(function, arguments, namedArguments);
     }
 
-    var defaultValuesClosure = JS('var', r'#[#]', function,
-        JS_GET_NAME(JsGetName.DEFAULT_VALUES_PROPERTY));
+    var defaultValuesClosure = JS(
+      'var',
+      r'#[#]',
+      function,
+      JS_GET_NAME(JsGetName.DEFAULT_VALUES_PROPERTY),
+    );
 
     bool acceptsOptionalArguments = defaultValuesClosure != null;
 
@@ -1000,8 +1130,12 @@
         acceptsOptionalArguments ? JS('', '#()', defaultValuesClosure) : null;
 
     var interceptor = getInterceptor(function);
-    var jsFunction =
-        JS('', '#[#]', interceptor, JS_GET_NAME(JsGetName.CALL_CATCH_ALL));
+    var jsFunction = JS(
+      '',
+      '#[#]',
+      interceptor,
+      JS_GET_NAME(JsGetName.CALL_CATCH_ALL),
+    );
     if (jsFunction is String) {
       // Anonymous closures redirect to the catch-all property instead of
       // storing the catch-all method directly in the catch-all property.
@@ -1036,8 +1170,12 @@
         return functionNoSuchMethod(function, arguments, null);
       }
       if (argumentCount < maxArguments) {
-        List missingDefaults = JS('JSArray', '#.slice(#)', defaultValues,
-            argumentCount - requiredParameterCount);
+        List missingDefaults = JS(
+          'JSArray',
+          '#.slice(#)',
+          defaultValues,
+          argumentCount - requiredParameterCount,
+        );
         if (identical(arguments, positionalArguments)) {
           // Defensive copy to avoid modifying passed-in List.
           arguments = List.of(arguments);
@@ -1137,8 +1275,12 @@
   // [IndexError.check] with no optional parameters
   // provided.
   if (index < 0 || index >= length) {
-    return IndexError.withLength(index, length,
-        indexable: indexable, name: 'index');
+    return IndexError.withLength(
+      index,
+      length,
+      indexable: indexable,
+      name: 'index',
+    );
   }
   // The above should always match, but if it does not, use the following.
   return RangeError.value(index, 'index');
@@ -1227,8 +1369,12 @@
     // (https://code.google.com/p/v8/issues/detail?id=2519).  The default
     // toString on Error returns the value of 'message' if 'name' is
     // empty. Setting toString directly doesn't work, see the bug.
-    JS('void', 'Object.defineProperty(#, "message", { get: # })', wrapper,
-        DART_CLOSURE_TO_JS(toStringWrapper));
+    JS(
+      'void',
+      'Object.defineProperty(#, "message", { get: # })',
+      wrapper,
+      DART_CLOSURE_TO_JS(toStringWrapper),
+    );
     JS('void', '#.name = ""', wrapper);
   } else {
     // In the unlikely event the browser doesn't support Object.defineProperty,
@@ -1279,7 +1425,10 @@
 
 @pragma('dart2js:never-inline')
 Error _diagnoseUnsupportedOperation(
-    Object o, Object encodedOperation, Object encodedVerb) {
+  Object o,
+  Object encodedOperation,
+  Object encodedVerb,
+) {
   String operation;
   String verb;
 
@@ -1387,56 +1536,71 @@
 
   /// Pattern used to recognize a NoSuchMethodError error (and
   /// possibly extract the method name).
-  static final TypeErrorDecoder noSuchMethodPattern =
-      extractPattern(provokeCallErrorOn(buildJavaScriptObject()));
+  static final TypeErrorDecoder noSuchMethodPattern = extractPattern(
+    provokeCallErrorOn(buildJavaScriptObject()),
+  );
 
   /// Pattern used to recognize an "object not a closure" error (and
   /// possibly extract the method name).
-  static final TypeErrorDecoder notClosurePattern =
-      extractPattern(provokeCallErrorOn(buildJavaScriptObjectWithNonClosure()));
+  static final TypeErrorDecoder notClosurePattern = extractPattern(
+    provokeCallErrorOn(buildJavaScriptObjectWithNonClosure()),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript null
   /// call.
-  static final TypeErrorDecoder nullCallPattern =
-      extractPattern(provokeCallErrorOn(JS('', 'null')));
+  static final TypeErrorDecoder nullCallPattern = extractPattern(
+    provokeCallErrorOn(JS('', 'null')),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript literal null
   /// call.
-  static final TypeErrorDecoder nullLiteralCallPattern =
-      extractPattern(provokeCallErrorOnNull());
+  static final TypeErrorDecoder nullLiteralCallPattern = extractPattern(
+    provokeCallErrorOnNull(),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript
   /// undefined call.
-  static final TypeErrorDecoder undefinedCallPattern =
-      extractPattern(provokeCallErrorOn(JS('', 'void 0')));
+  static final TypeErrorDecoder undefinedCallPattern = extractPattern(
+    provokeCallErrorOn(JS('', 'void 0')),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript literal
   /// undefined call.
-  static final TypeErrorDecoder undefinedLiteralCallPattern =
-      extractPattern(provokeCallErrorOnUndefined());
+  static final TypeErrorDecoder undefinedLiteralCallPattern = extractPattern(
+    provokeCallErrorOnUndefined(),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript null
   /// property access.
-  static final TypeErrorDecoder nullPropertyPattern =
-      extractPattern(provokePropertyErrorOn(JS('', 'null')));
+  static final TypeErrorDecoder nullPropertyPattern = extractPattern(
+    provokePropertyErrorOn(JS('', 'null')),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript literal null
   /// property access.
-  static final TypeErrorDecoder nullLiteralPropertyPattern =
-      extractPattern(provokePropertyErrorOnNull());
+  static final TypeErrorDecoder nullLiteralPropertyPattern = extractPattern(
+    provokePropertyErrorOnNull(),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript
   /// undefined property access.
-  static final TypeErrorDecoder undefinedPropertyPattern =
-      extractPattern(provokePropertyErrorOn(JS('', 'void 0')));
+  static final TypeErrorDecoder undefinedPropertyPattern = extractPattern(
+    provokePropertyErrorOn(JS('', 'void 0')),
+  );
 
   /// Pattern used to recognize a NoSuchMethodError on JavaScript literal
   /// undefined property access.
   static final TypeErrorDecoder undefinedLiteralPropertyPattern =
       extractPattern(provokePropertyErrorOnUndefined());
 
-  TypeErrorDecoder(this._arguments, this._argumentsExpr, this._expr,
-      this._method, this._receiver, this._pattern);
+  TypeErrorDecoder(
+    this._arguments,
+    this._argumentsExpr,
+    this._expr,
+    this._method,
+    this._receiver,
+    this._pattern,
+  );
 
   /// Returns a JavaScript object literal (map) with at most the
   /// following keys:
@@ -1461,7 +1625,11 @@
   ///   "[object Object]" in recent versions.
   matchTypeError(message) {
     var match = JS(
-        'JSExtendableArray|Null', 'new RegExp(#).exec(#)', _pattern, message);
+      'JSExtendableArray|Null',
+      'new RegExp(#).exec(#)',
+      _pattern,
+      message,
+    );
     if (match == null) return null;
     var result = JS('', 'Object.create(null)');
     if (_arguments != -1) {
@@ -1493,9 +1661,10 @@
   /// r"$receiver$". The property "$method" is defined, but is not a function.
   static buildJavaScriptObjectWithNonClosure() {
     return JS(
-        '',
-        r'{ $method$: null, '
-            r'toString: function() { return "$receiver$"; } }');
+      '',
+      r'{ $method$: null, '
+          r'toString: function() { return "$receiver$"; } }',
+    );
   }
 
   /// Extract a pattern from a JavaScript TypeError message.
@@ -1524,8 +1693,11 @@
     // Look for the special pattern \$camelCase\$ (all the $ symbols
     // have been escaped already), as we will soon be inserting
     // regular expression syntax that we want interpreted by RegExp.
-    List<String>? match =
-        JS('JSExtendableArray|Null', r'#.match(/\\\$[a-zA-Z]+\\\$/g)', message);
+    List<String>? match = JS(
+      'JSExtendableArray|Null',
+      r'#.match(/\\\$[a-zA-Z]+\\\$/g)',
+      message,
+    );
     if (match == null) match = [];
 
     // Find the positions within the substring matches of the error message
@@ -1541,19 +1713,26 @@
     // Note: in a perfect world, one would use "(.*)", but not in
     // JavaScript, "." does not match newlines.
     String pattern = JS(
-        'String',
-        r'#.replace(new RegExp("\\\\\\$arguments\\\\\\$", "g"), '
-            r'"((?:x|[^x])*)")'
-            r'.replace(new RegExp("\\\\\\$argumentsExpr\\\\\\$", "g"),  '
-            r'"((?:x|[^x])*)")'
-            r'.replace(new RegExp("\\\\\\$expr\\\\\\$", "g"),  "((?:x|[^x])*)")'
-            r'.replace(new RegExp("\\\\\\$method\\\\\\$", "g"),  "((?:x|[^x])*)")'
-            r'.replace(new RegExp("\\\\\\$receiver\\\\\\$", "g"),  '
-            r'"((?:x|[^x])*)")',
-        message);
+      'String',
+      r'#.replace(new RegExp("\\\\\\$arguments\\\\\\$", "g"), '
+          r'"((?:x|[^x])*)")'
+          r'.replace(new RegExp("\\\\\\$argumentsExpr\\\\\\$", "g"),  '
+          r'"((?:x|[^x])*)")'
+          r'.replace(new RegExp("\\\\\\$expr\\\\\\$", "g"),  "((?:x|[^x])*)")'
+          r'.replace(new RegExp("\\\\\\$method\\\\\\$", "g"),  "((?:x|[^x])*)")'
+          r'.replace(new RegExp("\\\\\\$receiver\\\\\\$", "g"),  '
+          r'"((?:x|[^x])*)")',
+      message,
+    );
 
     return TypeErrorDecoder(
-        arguments, argumentsExpr, expr, method, receiver, pattern);
+      arguments,
+      argumentsExpr,
+      expr,
+      method,
+      receiver,
+      pattern,
+    );
   }
 
   /// Provokes a TypeError and returns its message.
@@ -1703,9 +1882,8 @@
   final String? _receiver;
 
   JsNoSuchMethodError(this._message, match)
-      : _method = match == null ? null : JS('String|Null', '#.method', match),
-        _receiver =
-            match == null ? null : JS('String|Null', '#.receiver', match);
+    : _method = match == null ? null : JS('String|Null', '#.method', match),
+      _receiver = match == null ? null : JS('String|Null', '#.receiver', match);
 
   String toString() {
     if (_method == null) return 'NoSuchMethodError: $_message';
@@ -1811,7 +1989,9 @@
       switch (ieErrorCode) {
         case 438:
           return saveStackTrace(
-              ex, JsNoSuchMethodError('$message (Error $ieErrorCode)', null));
+            ex,
+            JsNoSuchMethodError('$message (Error $ieErrorCode)', null),
+          );
         case 445:
         case 5007:
           return saveStackTrace(ex, NullError('$message (Error $ieErrorCode)'));
@@ -1855,7 +2035,9 @@
     // to reporting this as a generic error. It's probably better than
     // nothing.
     return saveStackTrace(
-        ex, UnknownJsTypeError(message is String ? message : ''));
+      ex,
+      UnknownJsTypeError(message is String ? message : ''),
+    );
   }
 
   if (JS('bool', r'# instanceof RangeError', ex)) {
@@ -1876,9 +2058,10 @@
 
   // Check for the Firefox specific stack overflow signal.
   if (JS(
-      'bool',
-      r'typeof InternalError == "function" && # instanceof InternalError',
-      ex)) {
+    'bool',
+    r'typeof InternalError == "function" && # instanceof InternalError',
+    ex,
+  )) {
     if (message is String && message == 'too much recursion') {
       return StackOverflowError();
     }
@@ -1894,17 +2077,14 @@
   // Since this function is called from [unwrapException] which is called from
   // code injected into a catch-clause, use JavaScript try-catch to avoid a
   // potential loop if stringifying crashes.
-  return JS(
-      'String|Null',
-      r'''
+  return JS('String|Null', r'''
     (function(ex) {
       try {
         return String(ex);
       } catch (e) {}
       return null;
     })(#)
-    ''',
-      ex);
+    ''', ex);
 }
 
 /// Called by generated code to fetch the stack trace from an
@@ -2032,8 +2212,14 @@
   return JS('int', r'#.length', array);
 }
 
-_invokeClosure(Function closure, int numberOfArguments, var arg1, var arg2,
-    var arg3, var arg4) {
+_invokeClosure(
+  Function closure,
+  int numberOfArguments,
+  var arg1,
+  var arg2,
+  var arg3,
+  var arg4,
+) {
   switch (numberOfArguments) {
     case 0:
       return closure();
@@ -2097,16 +2283,17 @@
   // call sites in `_invokeClosure` to retain the entry points).
 
   return JS(
-      'var',
-      r'''
+    'var',
+    r'''
         (function(closure, arity, invoke) {
           return function(a1, a2, a3, a4) {
             return invoke(closure, arity, a1, a2, a3, a4);
           };
         })(#,#,#)''',
-      closure,
-      arity,
-      DART_CLOSURE_TO_JS(_invokeClosure));
+    closure,
+    arity,
+    DART_CLOSURE_TO_JS(_invokeClosure),
+  );
 }
 
 /// Superclass for Dart closures.
@@ -2148,22 +2335,50 @@
       getType(JS('int', '0'));
     });
 
-    Object? container =
-        JS('', '#.#', parameters, TearOffParametersPropertyNames.container);
+    Object? container = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.container,
+    );
 
-    bool isStatic =
-        JS('', '#.#', parameters, TearOffParametersPropertyNames.isStatic);
-    bool isIntercepted =
-        JS('', '#.#', parameters, TearOffParametersPropertyNames.isIntercepted);
-    bool needsDirectAccess = JS('', '#.#', parameters,
-        TearOffParametersPropertyNames.needsDirectAccess);
-    int applyTrampolineIndex =
-        JS('', '#.#', parameters, TearOffParametersPropertyNames.applyIndex);
+    bool isStatic = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.isStatic,
+    );
+    bool isIntercepted = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.isIntercepted,
+    );
+    bool needsDirectAccess = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.needsDirectAccess,
+    );
+    int applyTrampolineIndex = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.applyIndex,
+    );
 
-    JSArray funsOrNames =
-        JS('', '#.#', parameters, TearOffParametersPropertyNames.funsOrNames);
-    JSArray callNames =
-        JS('', '#.#', parameters, TearOffParametersPropertyNames.callNames);
+    JSArray funsOrNames = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.funsOrNames,
+    );
+    JSArray callNames = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.callNames,
+    );
 
     // The first function is the primary entry point. It is always a string, the
     // property name of the first function within the container.
@@ -2205,27 +2420,36 @@
     // Object.create to create the desired prototype.
     //
     // TODO(sra): Cache the prototype to avoid the allocation.
-    var prototype = isStatic
-        ? JS('StaticClosure', 'Object.create(#.constructor.prototype)',
-            StaticClosure())
-        : JS('BoundClosure', 'Object.create(#.constructor.prototype)',
-            BoundClosure(null, null));
+    var prototype =
+        isStatic
+            ? JS(
+              'StaticClosure',
+              'Object.create(#.constructor.prototype)',
+              StaticClosure(),
+            )
+            : JS(
+              'BoundClosure',
+              'Object.create(#.constructor.prototype)',
+              BoundClosure(null, null),
+            );
 
     JS('', '#.\$initialize = #', prototype, JS('', '#.constructor', prototype));
 
     // The constructor functions have names to prevent the JavaScript
     // implementation from inventing a name that might have special meaning
     // (e.g. clashing with minified 'Object' or 'Interceptor').
-    var constructor = isStatic
-        ? JS('', 'function static_tear_off(){this.\$initialize()}')
-        : isCsp
+    var constructor =
+        isStatic
+            ? JS('', 'function static_tear_off(){this.\$initialize()}')
+            : isCsp
             ? JS('', 'function tear_off(a,b) {this.\$initialize(a,b)}')
             : JS(
-                '',
-                'new Function("a,b" + #,'
-                    ' "this.\$initialize(a,b" + # + ")")',
-                functionCounter,
-                functionCounter++);
+              '',
+              'new Function("a,b" + #,'
+                  ' "this.\$initialize(a,b" + # + ")")',
+              functionCounter,
+              functionCounter++,
+            );
 
     // It is necessary to set the constructor property, otherwise it will be
     // "Object".
@@ -2239,18 +2463,30 @@
     // Create a closure and "monkey" patch it with call stubs.
     var trampoline = function;
     if (!isStatic) {
-      trampoline =
-          forwardCallTo(name, function, isIntercepted, needsDirectAccess);
+      trampoline = forwardCallTo(
+        name,
+        function,
+        isIntercepted,
+        needsDirectAccess,
+      );
     } else {
       // TODO(sra): Can this be removed?
       JS('', '#[#] = #', prototype, STATIC_FUNCTION_NAME_PROPERTY_NAME, name);
     }
 
-    var signatureFunction =
-        _computeSignatureFunctionNewRti(functionType, isStatic, isIntercepted);
+    var signatureFunction = _computeSignatureFunction(
+      functionType,
+      isStatic,
+      isIntercepted,
+    );
 
-    JS('', '#[#] = #', prototype, JS_GET_NAME(JsGetName.SIGNATURE_NAME),
-        signatureFunction);
+    JS(
+      '',
+      '#[#] = #',
+      prototype,
+      JS_GET_NAME(JsGetName.SIGNATURE_NAME),
+      signatureFunction,
+    );
     var applyTrampoline = trampoline;
     JS('', '#[#] = #', prototype, callName, trampoline);
 
@@ -2268,8 +2504,12 @@
       // otherwise unused, e.g. `foo<T>({bool strange = true})...`
       if (stubCallName != null) {
         if (!isStatic) {
-          stub =
-              forwardCallTo(stubName, stub, isIntercepted, needsDirectAccess);
+          stub = forwardCallTo(
+            stubName,
+            stub,
+            isIntercepted,
+            needsDirectAccess,
+          );
         }
         JS('', '#[#] = #', prototype, stubCallName, stub);
       }
@@ -2278,25 +2518,46 @@
       }
     }
 
-    JS('', '#[#] = #', prototype, JS_GET_NAME(JsGetName.CALL_CATCH_ALL),
-        applyTrampoline);
+    JS(
+      '',
+      '#[#] = #',
+      prototype,
+      JS_GET_NAME(JsGetName.CALL_CATCH_ALL),
+      applyTrampoline,
+    );
 
     String reqArgProperty = JS_GET_NAME(JsGetName.REQUIRED_PARAMETER_PROPERTY);
-    Object? requiredParameterCount = JS('', '#.#', parameters,
-        TearOffParametersPropertyNames.requiredParameterCount);
+    Object? requiredParameterCount = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.requiredParameterCount,
+    );
     JS('', '#.# = #', prototype, reqArgProperty, requiredParameterCount);
 
     String defValProperty = JS_GET_NAME(JsGetName.DEFAULT_VALUES_PROPERTY);
-    Object? optionalParameterDefaultValues = JS('', '#.#', parameters,
-        TearOffParametersPropertyNames.optionalParameterDefaultValues);
-    JS('', '#.# = #', prototype, defValProperty,
-        optionalParameterDefaultValues);
+    Object? optionalParameterDefaultValues = JS(
+      '',
+      '#.#',
+      parameters,
+      TearOffParametersPropertyNames.optionalParameterDefaultValues,
+    );
+    JS(
+      '',
+      '#.# = #',
+      prototype,
+      defValProperty,
+      optionalParameterDefaultValues,
+    );
 
     return constructor;
   }
 
-  static _computeSignatureFunctionNewRti(
-      Object functionType, bool isStatic, bool isIntercepted) {
+  static _computeSignatureFunction(
+    Object functionType,
+    bool isStatic,
+    bool isIntercepted,
+  ) {
     if (JS('bool', 'typeof # == "number"', functionType)) {
       // Index into types table. Handled in rti.dart.
       return functionType;
@@ -2309,20 +2570,25 @@
       }
       final typeEvalMethod = RAW_DART_FUNCTION_REF(BoundClosure.evalRecipe);
       return JS(
-          '',
-          '    function(recipe, evalOnReceiver) {'
-              '  return function() {'
-              '    return evalOnReceiver(this, recipe);'
-              '  };'
-              '}(#,#)',
-          functionType,
-          typeEvalMethod);
+        '',
+        '    function(recipe, evalOnReceiver) {'
+            '  return function() {'
+            '    return evalOnReceiver(this, recipe);'
+            '  };'
+            '}(#,#)',
+        functionType,
+        typeEvalMethod,
+      );
     }
     throw 'Error in functionType of tearoff';
   }
 
   static cspForwardCall(
-      int arity, bool needsDirectAccess, String? stubName, function) {
+    int arity,
+    bool needsDirectAccess,
+    String? stubName,
+    function,
+  ) {
     var getReceiver = RAW_DART_FUNCTION_REF(BoundClosure.receiverOf);
 
     // We have the target method (or an arity stub for the method) in
@@ -2341,82 +2607,93 @@
     switch (arity) {
       case 0:
         return JS(
-            '',
-            'function(entry, receiverOf){'
-                'return function(){'
-                'return receiverOf(this)[entry]()'
-                '}'
-                '}(#,#)',
-            stubName,
-            getReceiver);
+          '',
+          'function(entry, receiverOf){'
+              'return function(){'
+              'return receiverOf(this)[entry]()'
+              '}'
+              '}(#,#)',
+          stubName,
+          getReceiver,
+        );
       case 1:
         return JS(
-            '',
-            'function(entry, receiverOf){'
-                'return function(a){'
-                'return receiverOf(this)[entry](a)'
-                '}'
-                '}(#,#)',
-            stubName,
-            getReceiver);
+          '',
+          'function(entry, receiverOf){'
+              'return function(a){'
+              'return receiverOf(this)[entry](a)'
+              '}'
+              '}(#,#)',
+          stubName,
+          getReceiver,
+        );
       case 2:
         return JS(
-            '',
-            'function(entry, receiverOf){'
-                'return function(a, b){'
-                'return receiverOf(this)[entry](a, b)'
-                '}'
-                '}(#,#)',
-            stubName,
-            getReceiver);
+          '',
+          'function(entry, receiverOf){'
+              'return function(a, b){'
+              'return receiverOf(this)[entry](a, b)'
+              '}'
+              '}(#,#)',
+          stubName,
+          getReceiver,
+        );
       case 3:
         return JS(
-            '',
-            'function(entry, receiverOf){'
-                'return function(a, b, c){'
-                'return receiverOf(this)[entry](a, b, c)'
-                '}'
-                '}(#,#)',
-            stubName,
-            getReceiver);
+          '',
+          'function(entry, receiverOf){'
+              'return function(a, b, c){'
+              'return receiverOf(this)[entry](a, b, c)'
+              '}'
+              '}(#,#)',
+          stubName,
+          getReceiver,
+        );
       case 4:
         return JS(
-            '',
-            'function(entry, receiverOf){'
-                'return function(a, b, c, d){'
-                'return receiverOf(this)[entry](a, b, c, d)'
-                '}'
-                '}(#,#)',
-            stubName,
-            getReceiver);
+          '',
+          'function(entry, receiverOf){'
+              'return function(a, b, c, d){'
+              'return receiverOf(this)[entry](a, b, c, d)'
+              '}'
+              '}(#,#)',
+          stubName,
+          getReceiver,
+        );
       case 5:
         return JS(
-            '',
-            'function(entry, receiverOf){'
-                'return function(a, b, c, d, e){'
-                'return receiverOf(this)[entry](a, b, c, d, e)'
-                '}'
-                '}(#,#)',
-            stubName,
-            getReceiver);
+          '',
+          'function(entry, receiverOf){'
+              'return function(a, b, c, d, e){'
+              'return receiverOf(this)[entry](a, b, c, d, e)'
+              '}'
+              '}(#,#)',
+          stubName,
+          getReceiver,
+        );
       default:
         // Here we use `Function.prototype.apply`.
         return JS(
-            '',
-            'function(f, receiverOf){'
-                'return function(){'
-                'return f.apply(receiverOf(this), arguments)'
-                '}'
-                '}(#,#)',
-            function,
-            getReceiver);
+          '',
+          'function(f, receiverOf){'
+              'return function(){'
+              'return f.apply(receiverOf(this), arguments)'
+              '}'
+              '}(#,#)',
+          function,
+          getReceiver,
+        );
     }
   }
 
   static bool get isCsp => JS_GET_FLAG('USE_CONTENT_SECURITY_POLICY');
 
   static forwardCallTo(
-      String stubName, function, bool isIntercepted, bool needsDirectAccess) {
+    String stubName,
+    function,
+    bool isIntercepted,
+    bool needsDirectAccess,
+  ) {
     if (isIntercepted)
       return forwardInterceptedCallTo(stubName, function, needsDirectAccess);
     int arity = JS('int', '#.length', function);
@@ -2429,27 +2706,36 @@
       // Incorporate functionCounter into a local.
       String selfName = 'self${functionCounter++}';
       return JS(
-          '',
-          '(new Function(#))()',
-          'return function(){'
-              'var $selfName = this.${BoundClosure.receiverFieldName()};'
-              'return $selfName.$stubName();'
-              '}');
-    }
-    assert(1 <= arity && arity < 27);
-    String arguments = JS('String',
-        '"abcdefghijklmnopqrstuvwxyz".split("").splice(0,#).join(",")', arity);
-    arguments += '${functionCounter++}';
-    return JS(
         '',
         '(new Function(#))()',
-        'return function($arguments){'
-            'return this.${BoundClosure.receiverFieldName()}.$stubName($arguments);'
-            '}');
+        'return function(){'
+            'var $selfName = this.${BoundClosure.receiverFieldName()};'
+            'return $selfName.$stubName();'
+            '}',
+      );
+    }
+    assert(1 <= arity && arity < 27);
+    String arguments = JS(
+      'String',
+      '"abcdefghijklmnopqrstuvwxyz".split("").splice(0,#).join(",")',
+      arity,
+    );
+    arguments += '${functionCounter++}';
+    return JS(
+      '',
+      '(new Function(#))()',
+      'return function($arguments){'
+          'return this.${BoundClosure.receiverFieldName()}.$stubName($arguments);'
+          '}',
+    );
   }
 
   static cspForwardInterceptedCall(
-      int arity, bool needsDirectAccess, String? stubName, function) {
+    int arity,
+    bool needsDirectAccess,
+    String? stubName,
+    function,
+  ) {
     var getReceiver = RAW_DART_FUNCTION_REF(BoundClosure.receiverOf);
     var getInterceptor = RAW_DART_FUNCTION_REF(BoundClosure.interceptorOf);
     // Handle intercepted stub-names with the default slow case.
@@ -2461,88 +2747,98 @@
         throw RuntimeError('Intercepted function with no arguments.');
       case 1:
         return JS(
-            '',
-            'function(entry, interceptorOf, receiverOf){'
-                'return function(){'
-                'return interceptorOf(this)[entry](receiverOf(this))'
-                '}'
-                '}(#,#,#)',
-            stubName,
-            getInterceptor,
-            getReceiver);
+          '',
+          'function(entry, interceptorOf, receiverOf){'
+              'return function(){'
+              'return interceptorOf(this)[entry](receiverOf(this))'
+              '}'
+              '}(#,#,#)',
+          stubName,
+          getInterceptor,
+          getReceiver,
+        );
       case 2:
         return JS(
-            '',
-            'function(entry, interceptorOf, receiverOf){'
-                'return function(a){'
-                'return interceptorOf(this)[entry](receiverOf(this), a)'
-                '}'
-                '}(#,#,#)',
-            stubName,
-            getInterceptor,
-            getReceiver);
+          '',
+          'function(entry, interceptorOf, receiverOf){'
+              'return function(a){'
+              'return interceptorOf(this)[entry](receiverOf(this), a)'
+              '}'
+              '}(#,#,#)',
+          stubName,
+          getInterceptor,
+          getReceiver,
+        );
       case 3:
         return JS(
-            '',
-            'function(entry, interceptorOf, receiverOf){'
-                'return function(a, b){'
-                'return interceptorOf(this)[entry](receiverOf(this), a, b)'
-                '}'
-                '}(#,#,#)',
-            stubName,
-            getInterceptor,
-            getReceiver);
+          '',
+          'function(entry, interceptorOf, receiverOf){'
+              'return function(a, b){'
+              'return interceptorOf(this)[entry](receiverOf(this), a, b)'
+              '}'
+              '}(#,#,#)',
+          stubName,
+          getInterceptor,
+          getReceiver,
+        );
       case 4:
         return JS(
-            '',
-            'function(entry, interceptorOf, receiverOf){'
-                'return function(a, b, c){'
-                'return interceptorOf(this)[entry](receiverOf(this), a, b, c)'
-                '}'
-                '}(#,#,#)',
-            stubName,
-            getInterceptor,
-            getReceiver);
+          '',
+          'function(entry, interceptorOf, receiverOf){'
+              'return function(a, b, c){'
+              'return interceptorOf(this)[entry](receiverOf(this), a, b, c)'
+              '}'
+              '}(#,#,#)',
+          stubName,
+          getInterceptor,
+          getReceiver,
+        );
       case 5:
         return JS(
-            '',
-            'function(entry, interceptorOf, receiverOf){'
-                'return function(a, b, c, d){'
-                'return interceptorOf(this)[entry](receiverOf(this), a, b, c, d)'
-                '}'
-                '}(#,#,#)',
-            stubName,
-            getInterceptor,
-            getReceiver);
+          '',
+          'function(entry, interceptorOf, receiverOf){'
+              'return function(a, b, c, d){'
+              'return interceptorOf(this)[entry](receiverOf(this), a, b, c, d)'
+              '}'
+              '}(#,#,#)',
+          stubName,
+          getInterceptor,
+          getReceiver,
+        );
       case 6:
         return JS(
-            '',
-            'function(entry, interceptorOf, receiverOf){'
-                'return function(a, b, c, d, e){'
-                'return interceptorOf(this)[entry](receiverOf(this), a, b, c, d, e)'
-                '}'
-                '}(#,#,#)',
-            stubName,
-            getInterceptor,
-            getReceiver);
+          '',
+          'function(entry, interceptorOf, receiverOf){'
+              'return function(a, b, c, d, e){'
+              'return interceptorOf(this)[entry](receiverOf(this), a, b, c, d, e)'
+              '}'
+              '}(#,#,#)',
+          stubName,
+          getInterceptor,
+          getReceiver,
+        );
       default:
         return JS(
-            '',
-            'function(f, interceptorOf, receiverOf){'
-                'return function(){'
-                'var a = [receiverOf(this)];'
-                'Array.prototype.push.apply(a, arguments);'
-                'return f.apply(interceptorOf(this), a)'
-                '}'
-                '}(#,#,#)',
-            function,
-            getInterceptor,
-            getReceiver);
+          '',
+          'function(f, interceptorOf, receiverOf){'
+              'return function(){'
+              'var a = [receiverOf(this)];'
+              'Array.prototype.push.apply(a, arguments);'
+              'return f.apply(interceptorOf(this), a)'
+              '}'
+              '}(#,#,#)',
+          function,
+          getInterceptor,
+          getReceiver,
+        );
     }
   }
 
   static forwardInterceptedCallTo(
-      String stubName, function, bool needsDirectAccess) {
+    String stubName,
+    function,
+    bool needsDirectAccess,
+  ) {
     String interceptorField = BoundClosure.interceptorFieldName();
     String receiverField = BoundClosure.receiverFieldName();
     int arity = JS('int', '#.length', function);
@@ -2550,29 +2846,36 @@
 
     if (isCsp || needsDirectAccess || arity >= 28) {
       return cspForwardInterceptedCall(
-          arity, needsDirectAccess, stubName, function);
+        arity,
+        needsDirectAccess,
+        stubName,
+        function,
+      );
     }
     if (arity == 1) {
       return JS(
-          '',
-          '(new Function(#))()',
-          'return function(){'
-              'return this.$interceptorField.$stubName(this.$receiverField);'
-              '${functionCounter++}'
-              '}');
+        '',
+        '(new Function(#))()',
+        'return function(){'
+            'return this.$interceptorField.$stubName(this.$receiverField);'
+            '${functionCounter++}'
+            '}',
+      );
     }
     assert(1 < arity && arity < 28);
     String arguments = JS(
-        'String',
-        '"abcdefghijklmnopqrstuvwxyz".split("").splice(0,#).join(",")',
-        arity - 1);
+      'String',
+      '"abcdefghijklmnopqrstuvwxyz".split("").splice(0,#).join(",")',
+      arity - 1,
+    );
     return JS(
-        '',
-        '(new Function(#))()',
-        'return function($arguments){'
-            'return this.$interceptorField.$stubName(this.$receiverField, $arguments);'
-            '${functionCounter++}'
-            '}');
+      '',
+      '(new Function(#))()',
+      'return function($arguments){'
+          'return this.$interceptorField.$stubName(this.$receiverField, $arguments);'
+          '${functionCounter++}'
+          '}',
+    );
   }
 
   // The backend adds a special getter of the form
@@ -2592,7 +2895,7 @@
     return "Closure '${unminifyOrTag(name)}'";
   }
 
-  Type get runtimeType => newRti.getRuntimeTypeOfClosure(this);
+  Type get runtimeType => rti.getRuntimeTypeOfClosure(this);
 }
 
 /// This is called by the fragment emitter.
@@ -2612,8 +2915,12 @@
 
 final class StaticClosure extends TearOffClosure {
   String toString() {
-    String? name =
-        JS('String|Null', '#[#]', this, STATIC_FUNCTION_NAME_PROPERTY_NAME);
+    String? name = JS(
+      'String|Null',
+      '#[#]',
+      this,
+      STATIC_FUNCTION_NAME_PROPERTY_NAME,
+    );
     if (name == null) return 'Closure of unknown static method';
     return "Closure '${unminifyOrTag(name)}'";
   }
@@ -2668,7 +2975,7 @@
 
   @pragma('dart2js:parameter:trust')
   static evalRecipe(BoundClosure closure, String recipe) {
-    return newRti.evalInInstance(closure._receiver, recipe);
+    return rti.evalInInstance(closure._receiver, recipe);
   }
 
   @pragma('dart2js:noInline')
@@ -2692,7 +2999,8 @@
   static String _computeFieldNamed(String fieldName) {
     var template = BoundClosure('receiver', 'interceptor');
     var names = JSArray.markFixedList(
-        JS('', 'Object.getOwnPropertyNames(#)', template));
+      JS('', 'Object.getOwnPropertyNames(#)', template),
+    );
     for (int i = 0; i < names.length; i++) {
       var name = names[i];
       if (JS('bool', '#[#] === #', template, name, fieldName)) {
@@ -2820,7 +3128,7 @@
   if (false == condition) return true;
   bool checked = condition as bool;
   if (null == condition) {
-    newRti.throwTypeError('assert condition must not be null');
+    rti.throwTypeError('assert condition must not be null');
   }
   return !checked;
 }
@@ -2924,11 +3232,12 @@
 DeferredLoadCallback? deferredLoadHook;
 
 /// Add events to global initialization event log.
-void _addEvent(
-    {required String part,
-    required String event,
-    String? loadId,
-    String? hash}) {
+void _addEvent({
+  required String part,
+  required String event,
+  String? loadId,
+  String? hash,
+}) {
   var initializationEventLog = JS_EMBEDDED_GLOBAL('', INITIALIZATION_EVENT_LOG);
   var dataObj = JS('=Object', '{p: #, e: #}', part, event);
   if (hash != null) JS('', '#.h = #', dataObj, hash);
@@ -2945,14 +3254,15 @@
   var initializationEventLog = JS_EMBEDDED_GLOBAL('', INITIALIZATION_EVENT_LOG);
   final o = JS('', 'Array.from(#).reverse()', initializationEventLog);
   JS(
-      '',
-      '#.reduce((p, e, i, a) => {e.i = a.length - i; '
-          'if (p == null) return e.s; '
-          'if (e.s == null) return p; '
-          'if (e.s === p) { delete e.s; return p; }'
-          'return e.s;}'
-          ', null)',
-      o);
+    '',
+    '#.reduce((p, e, i, a) => {e.i = a.length - i; '
+        'if (p == null) return e.s; '
+        'if (e.s == null) return p; '
+        'if (e.s === p) { delete e.s; return p; }'
+        'return e.s;}'
+        ', null)',
+    o,
+  );
   return JS('String', '#.map((e) => JSON.stringify(e)).join("\\n")', o);
 }
 
@@ -3002,7 +3312,11 @@
       var hash = hashes[i];
       if (JS('bool', '#(#)', isHunkInitialized, hash)) {
         _addEvent(
-            part: uri, hash: hash, event: 'alreadyInitialized', loadId: loadId);
+          part: uri,
+          hash: hash,
+          event: 'alreadyInitialized',
+          loadId: loadId,
+        );
         continue;
       }
       // This check is just an extra precaution, `isHunkLoaded(hash)` should
@@ -3014,9 +3328,11 @@
       } else {
         _addEvent(part: uri, hash: hash, event: 'missing', loadId: loadId);
 
-        throw DeferredLoadException("Loading ${uris[i]} failed: "
-            "the code with hash '${hash}' was not loaded.\n"
-            "event log:\n${_getEventLog()}\n");
+        throw DeferredLoadException(
+          "Loading ${uris[i]} failed: "
+          "the code with hash '${hash}' was not loaded.\n"
+          "event log:\n${_getEventLog()}\n",
+        );
       }
     }
   }
@@ -3032,13 +3348,20 @@
     }
   }
 
-  var deferredLibraryMultiLoader =
-      JS('', 'self.dartDeferredLibraryMultiLoader');
+  var deferredLibraryMultiLoader = JS(
+    '',
+    'self.dartDeferredLibraryMultiLoader',
+  );
 
   if (JS('bool', 'typeof # === "function"', deferredLibraryMultiLoader)) {
     return _loadAllHunks(
-            deferredLibraryMultiLoader, uris, hashes, loadId, priority, 0)
-        .then((_) {
+      deferredLibraryMultiLoader,
+      uris,
+      hashes,
+      loadId,
+      priority,
+      0,
+    ).then((_) {
       waitingForLoad = List.filled(total, false);
       finalizeLoad();
     });
@@ -3119,8 +3442,13 @@
 
   final Object? policyFactory = JS('', 'self.trustedTypes');
   if (policyFactory == null) return fallbackPolicy;
-  final Object? newPolicy = JS('', '#.createPolicy(#, #)', policyFactory,
-      _deferredLoadingTrustedTypesPolicyName, policyOptions);
+  final Object? newPolicy = JS(
+    '',
+    '#.createPolicy(#, #)',
+    policyFactory,
+    _deferredLoadingTrustedTypesPolicyName,
+    policyOptions,
+  );
   return newPolicy ?? fallbackPolicy;
 }
 
@@ -3172,10 +3500,11 @@
     // property is not set until the exception is thrown. The stack
     // property was not provided until IE10.
     stack = JS(
-        'String|Null',
-        '(function() {'
-            'try { throw new Error() } catch(e) { return e.stack }'
-            '})()');
+      'String|Null',
+      '(function() {'
+          'try { throw new Error() } catch(e) { return e.stack }'
+          '})()',
+    );
     if (stack == null) throw UnsupportedError('No stack trace');
   }
   var pattern, matches;
@@ -3201,11 +3530,19 @@
 
 Object _buildTrustedScriptUriWithRetry(String hunkName, int retryCount) {
   return _getBasedScriptUrl(
-      hunkName, retryCount > 0 ? '?dart2jsRetry=$retryCount' : '');
+    hunkName,
+    retryCount > 0 ? '?dart2jsRetry=$retryCount' : '',
+  );
 }
 
-Future _loadAllHunks(Object loader, List<String> hunkNames, List<String> hashes,
-    String loadId, String priority, int retryCount) {
+Future _loadAllHunks(
+  Object loader,
+  List<String> hunkNames,
+  List<String> hashes,
+  String loadId,
+  String priority,
+  int retryCount,
+) {
   const int maxRetries = 3;
   var isHunkLoaded = JS_EMBEDDED_GLOBAL('', IS_HUNK_LOADED);
 
@@ -3226,8 +3563,10 @@
       } else {
         hunksToLoad.add(hunkName);
         hashesToLoad.add(hash);
-        Object trustedScriptUri =
-            _buildTrustedScriptUriWithRetry(hunkName, retryCount);
+        Object trustedScriptUri = _buildTrustedScriptUriWithRetry(
+          hunkName,
+          retryCount,
+        );
         // [trustedScriptUri] is either a String, in which case `toString()` is
         // an identity function, or it is a TrustedScriptURL and `toString()`
         // returns the sanitized URL.
@@ -3247,30 +3586,46 @@
   hunksToLoad.forEach((hunkName) => _loadingLibraries[hunkName] = completer);
   _addEvent(part: loadedHunksString, event: 'downloadMulti', loadId: loadId);
 
-  void failure(error, String context, StackTrace? stackTrace,
-      List<String>? hunksToRetry, List<String>? hashesToRetry) {
+  void failure(
+    error,
+    String context,
+    StackTrace? stackTrace,
+    List<String>? hunksToRetry,
+    List<String>? hashesToRetry,
+  ) {
     if (retryCount < maxRetries && hunksToRetry != null) {
       _addEvent(
-          part: hunksToRetry.join(';'),
-          event: 'retry$retryCount',
-          loadId: loadId);
+        part: hunksToRetry.join(';'),
+        event: 'retry$retryCount',
+        loadId: loadId,
+      );
       for (var i = 0; i < hunksToRetry.length; i++) {
         _loadingLibraries[hunksToRetry[i]] = null;
       }
-      _loadAllHunks(loader, hunksToRetry, hashesToRetry!, loadId, priority,
-              retryCount + 1)
-          .then((_) => completer.complete(null),
-              onError: completer.completeError);
+      _loadAllHunks(
+        loader,
+        hunksToRetry,
+        hashesToRetry!,
+        loadId,
+        priority,
+        retryCount + 1,
+      ).then((_) => completer.complete(null), onError: completer.completeError);
     } else {
       _addEvent(
-          part: loadedHunksString, event: 'downloadFailure', loadId: loadId);
+        part: loadedHunksString,
+        event: 'downloadFailure',
+        loadId: loadId,
+      );
       hunksToLoad.forEach((hunkName) => _loadingLibraries[hunkName] = null);
       stackTrace ??= StackTrace.current;
       completer.completeError(
-          DeferredLoadException('Loading $loadedHunksString failed: $error\n'
-              'Context: $context\n'
-              'event log:\n${_getEventLog()}\n'),
-          stackTrace);
+        DeferredLoadException(
+          'Loading $loadedHunksString failed: $error\n'
+          'Context: $context\n'
+          'event log:\n${_getEventLog()}\n',
+        ),
+        stackTrace,
+      );
     }
   }
 
@@ -3286,7 +3641,10 @@
     }
     if (hunksToRetry.isEmpty) {
       _addEvent(
-          part: loadedHunksString, event: 'downloadSuccess', loadId: loadId);
+        part: loadedHunksString,
+        event: 'downloadSuccess',
+        loadId: loadId,
+      );
       completer.complete(null);
     } else {
       failure(
@@ -3312,18 +3670,36 @@
   }, 1);
 
   try {
-    JS('void', '#(#, #, #, #, #)', loader, urisToLoad, jsSuccess, jsFailure,
-        loadId, priority);
+    JS(
+      'void',
+      '#(#, #, #, #, #)',
+      loader,
+      urisToLoad,
+      jsSuccess,
+      jsFailure,
+      loadId,
+      priority,
+    );
   } catch (error, stackTrace) {
-    failure(error, "invoking dartDeferredLibraryMultiLoader hook", stackTrace,
-        hunksToLoad, hashesToLoad);
+    failure(
+      error,
+      "invoking dartDeferredLibraryMultiLoader hook",
+      stackTrace,
+      hunksToLoad,
+      hashesToLoad,
+    );
   }
 
   return Future.wait([...pendingLoads, completer.future]);
 }
 
-Future<Null> _loadHunk(String hunkName, String loadId, String priority,
-    String hash, int retryCount) {
+Future<Null> _loadHunk(
+  String hunkName,
+  String loadId,
+  String priority,
+  String hash,
+  int retryCount,
+) {
   const int maxRetries = 3;
 
   var completer = _loadingLibraries[hunkName];
@@ -3334,8 +3710,10 @@
   }
   completer ??= _loadingLibraries[hunkName] = Completer();
 
-  Object trustedScriptUri =
-      _buildTrustedScriptUriWithRetry(hunkName, retryCount);
+  Object trustedScriptUri = _buildTrustedScriptUriWithRetry(
+    hunkName,
+    retryCount,
+  );
   String uriAsString = JS('', '#.toString()', trustedScriptUri);
 
   _addEvent(part: hunkName, event: 'download', loadId: loadId);
@@ -3351,10 +3729,13 @@
       _loadingLibraries[hunkName] = null;
       stackTrace ??= StackTrace.current;
       completer!.completeError(
-          DeferredLoadException('Loading $uriAsString failed: $error\n'
-              'Context: $context\n'
-              'event log:\n${_getEventLog()}\n'),
-          stackTrace);
+        DeferredLoadException(
+          'Loading $uriAsString failed: $error\n'
+          'Context: $context\n'
+          'event log:\n${_getEventLog()}\n',
+        ),
+        stackTrace,
+      );
     }
   }
 
@@ -3366,22 +3747,36 @@
       completer!.complete(null);
     } else {
       failure(
-          'Success callback invoked but part $hunkName not loaded.', '', null);
+        'Success callback invoked but part $hunkName not loaded.',
+        '',
+        null,
+      );
     }
   }
 
   var jsSuccess = convertDartClosureToJS(success, 0);
   var jsFailure = convertDartClosureToJS((error) {
-    failure(unwrapException(error), 'js-failure-wrapper',
-        getTraceFromException(error));
+    failure(
+      unwrapException(error),
+      'js-failure-wrapper',
+      getTraceFromException(error),
+    );
   }, 1);
 
   if (JS('bool', 'typeof # === "function"', deferredLibraryLoader)) {
     try {
       // Share the loadId that hunk belongs to, this will allow for any
       // additional loadId based bundling optimizations.
-      JS('void', '#(#, #, #, #, #)', deferredLibraryLoader, uriAsString,
-          jsSuccess, jsFailure, loadId, priority);
+      JS(
+        'void',
+        '#(#, #, #, #, #)',
+        deferredLibraryLoader,
+        uriAsString,
+        jsSuccess,
+        jsFailure,
+        loadId,
+        priority,
+      );
     } catch (error, stackTrace) {
       failure(error, "invoking dartDeferredLibraryLoader hook", stackTrace);
     }
@@ -3390,24 +3785,25 @@
     var xhr = JS('var', 'new XMLHttpRequest()');
     JS('void', '#.open("GET", #)', xhr, uriAsString);
     JS(
-        'void',
-        '#.addEventListener("load", #, false)',
-        xhr,
-        convertDartClosureToJS((event) {
-          int status = JS('int', '#.status', xhr);
-          if (status != 200) {
-            failure('Request status: $status', 'worker xhr', null);
-          }
-          String code = JS('String', '#.responseText', xhr);
-          try {
-            // Create a new function to avoid getting access to current function
-            // context.
-            JS('void', '(new Function(#))()', code);
-            success();
-          } catch (error, stackTrace) {
-            failure(error, 'evaluating the code in worker xhr', stackTrace);
-          }
-        }, 1));
+      'void',
+      '#.addEventListener("load", #, false)',
+      xhr,
+      convertDartClosureToJS((event) {
+        int status = JS('int', '#.status', xhr);
+        if (status != 200) {
+          failure('Request status: $status', 'worker xhr', null);
+        }
+        String code = JS('String', '#.responseText', xhr);
+        try {
+          // Create a new function to avoid getting access to current function
+          // context.
+          JS('void', '(new Function(#))()', code);
+          success();
+        } catch (error, stackTrace) {
+          failure(error, 'evaluating the code in worker xhr', stackTrace);
+        }
+      }, 1),
+    );
 
     JS('void', '#.addEventListener("error", #, false)', xhr, (e) {
       failure(e, 'xhr error handler', null);
@@ -3485,8 +3881,9 @@
 
 // See tests/web/platform_environment_variable1_test.dart
 const String testPlatformEnvironmentVariableValue = String.fromEnvironment(
-    'dart2js.test.platform.environment.variable',
-    defaultValue: 'not-specified');
+  'dart2js.test.platform.environment.variable',
+  defaultValue: 'not-specified',
+);
 
 String testingGetPlatformEnvironmentVariable() {
   return testPlatformEnvironmentVariableValue;
@@ -3510,8 +3907,10 @@
 ///
 /// This function does not recurse if [value] is a collection.
 void assertInterop(Object? value) {
-  assert(value is! Function || isJSFunction(value),
-      'Dart function requires `allowInterop` to be passed to JavaScript.');
+  assert(
+    value is! Function || isJSFunction(value),
+    'Dart function requires `allowInterop` to be passed to JavaScript.',
+  );
 }
 
 /// Like [assertInterop], except iterates over a list of arguments
@@ -3520,8 +3919,10 @@
 /// This function intentionally avoids using [assertInterop] so that this
 /// function can become a no-op if assertions are disabled.
 void assertInteropArgs(List<Object?> args) {
-  assert(args.every((arg) => arg is! Function || isJSFunction(arg)),
-      'Dart function requires `allowInterop` to be passed to JavaScript.');
+  assert(
+    args.every((arg) => arg is! Function || isJSFunction(arg)),
+    'Dart function requires `allowInterop` to be passed to JavaScript.',
+  );
 }
 
 Object? rawStartupMetrics() {
diff --git a/sdk/lib/_internal/js_runtime/lib/records.dart b/sdk/lib/_internal/js_runtime/lib/records.dart
index 49de853..d688fc0 100644
--- a/sdk/lib/_internal/js_runtime/lib/records.dart
+++ b/sdk/lib/_internal/js_runtime/lib/records.dart
@@ -8,8 +8,12 @@
 abstract final class _Record implements Record {
   const _Record();
 
-  int get _shapeTag => JS('JSUInt31', '#[#]', this,
-      JS_GET_NAME(JsGetName.RECORD_SHAPE_TAG_PROPERTY));
+  int get _shapeTag => JS(
+    'JSUInt31',
+    '#[#]',
+    this,
+    JS_GET_NAME(JsGetName.RECORD_SHAPE_TAG_PROPERTY),
+  );
 
   bool _sameShape(_Record other) => _shapeTag == other._shapeTag;
 
@@ -19,13 +23,17 @@
 
   Type get runtimeType {
     // TODO(51040): Consider caching.
-    return newRti.getRuntimeTypeOfRecord(this);
+    return rti.getRuntimeTypeOfRecord(this);
   }
 
-  newRti.Rti _getRti() {
-    String recipe =
-        JS('', '#[#]', this, JS_GET_NAME(JsGetName.RECORD_SHAPE_TYPE_PROPERTY));
-    return newRti.evaluateRtiForRecord(recipe, _getFieldValues());
+  rti.Rti _getRti() {
+    String recipe = JS(
+      '',
+      '#[#]',
+      this,
+      JS_GET_NAME(JsGetName.RECORD_SHAPE_TYPE_PROPERTY),
+    );
+    return rti.evaluateRtiForRecord(recipe, _getFieldValues());
   }
 
   @override
@@ -67,8 +75,12 @@
   }
 
   List<Object> _computeFieldKeys() {
-    String recipe =
-        JS('', '#[#]', this, JS_GET_NAME(JsGetName.RECORD_SHAPE_TYPE_PROPERTY));
+    String recipe = JS(
+      '',
+      '#[#]',
+      this,
+      JS_GET_NAME(JsGetName.RECORD_SHAPE_TYPE_PROPERTY),
+    );
 
     // TODO(50081): The Rti recipe format is agnostic to what the record shape
     // key is. We happen to use a comma-separated list of the names for the
@@ -103,7 +115,7 @@
 /// Entrypoint for rti library. Calls rti.evaluateRtiForRecord with components
 /// of the record.
 @pragma('dart2js:as:trust')
-newRti.Rti getRtiForRecord(Object? record) {
+rti.Rti getRtiForRecord(Object? record) {
   return (record as _Record)._getRti();
 }
 
@@ -249,7 +261,7 @@
   r3 == anything();
   rN == anything();
 
-  newRti.pairwiseIsTest(anything() as JSArray, anything() as JSArray);
+  rti.pairwiseIsTest(anything() as JSArray, anything() as JSArray);
 }
 
 // TODO(50081): Can this be `external`?
diff --git a/tests/web/internal/rti/constant_type_test.dart b/tests/web/internal/rti/constant_type_test.dart
index 7e71eb7..21d7a33 100644
--- a/tests/web/internal/rti/constant_type_test.dart
+++ b/tests/web/internal/rti/constant_type_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti --no-minify
+// dart2jsOptions=--no-minify
 
 import "package:expect/expect.dart";
 
diff --git a/tests/web/internal/rti/runtime_type_1_test.dart b/tests/web/internal/rti/runtime_type_1_test.dart
index a3bcf05..4a141f4 100644
--- a/tests/web/internal/rti/runtime_type_1_test.dart
+++ b/tests/web/internal/rti/runtime_type_1_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti --no-minify
+// dart2jsOptions=--no-minify
 
 import 'dart:_rti' as rti;
 import "package:expect/expect.dart";
diff --git a/tests/web/internal/rti/runtime_type_2_test.dart b/tests/web/internal/rti/runtime_type_2_test.dart
index d8cd534..bf0f453 100644
--- a/tests/web/internal/rti/runtime_type_2_test.dart
+++ b/tests/web/internal/rti/runtime_type_2_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti --no-minify
+// dart2jsOptions=--no-minify
 
 import "package:expect/expect.dart";
 
diff --git a/tests/web/internal/rti/runtime_type_3_test.dart b/tests/web/internal/rti/runtime_type_3_test.dart
index 89b8c8b..a162887 100644
--- a/tests/web/internal/rti/runtime_type_3_test.dart
+++ b/tests/web/internal/rti/runtime_type_3_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti --no-minify
+// dart2jsOptions=--no-minify
 
 import "package:expect/expect.dart";
 import "dart:_foreign_helper" show JS;
diff --git a/tests/web/internal/rti/simple_is_function_type2_test.dart b/tests/web/internal/rti/simple_is_function_type2_test.dart
index 06e490d..06e1240 100644
--- a/tests/web/internal/rti/simple_is_function_type2_test.dart
+++ b/tests/web/internal/rti/simple_is_function_type2_test.dart
@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti
-
 import "package:expect/expect.dart";
 
 int fnInt2Int(int x) => x;
diff --git a/tests/web/internal/rti/simple_is_function_type3_test.dart b/tests/web/internal/rti/simple_is_function_type3_test.dart
index 78c5469..dabdb00 100644
--- a/tests/web/internal/rti/simple_is_function_type3_test.dart
+++ b/tests/web/internal/rti/simple_is_function_type3_test.dart
@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti
-
 // Test that some closures are 'is Function'.
 
 import "package:expect/expect.dart";
diff --git a/tests/web/internal/rti/simple_is_function_type_test.dart b/tests/web/internal/rti/simple_is_function_type_test.dart
index 2f32edc..7ee2e79 100644
--- a/tests/web/internal/rti/simple_is_function_type_test.dart
+++ b/tests/web/internal/rti/simple_is_function_type_test.dart
@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti
-
 import 'dart:_rti' as rti;
 import "package:expect/expect.dart";
 
diff --git a/tests/web/internal/rti/simple_is_test.dart b/tests/web/internal/rti/simple_is_test.dart
index fb82ac4..3f0bac7 100644
--- a/tests/web/internal/rti/simple_is_test.dart
+++ b/tests/web/internal/rti/simple_is_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti --no-minify
+// dart2jsOptions=--no-minify
 
 import 'dart:_rti' as rti;
 import "package:expect/expect.dart";
diff --git a/tests/web/internal/rti/simple_type_bound_test.dart b/tests/web/internal/rti/simple_type_bound_test.dart
index 29a8761..6268d0e 100644
--- a/tests/web/internal/rti/simple_type_bound_test.dart
+++ b/tests/web/internal/rti/simple_type_bound_test.dart
@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--experiment-new-rti
-
 import "package:expect/expect.dart";
 
 @pragma('dart2js:noInline')
diff --git a/tests/web/lax_runtime_type_closure_to_string3_test.dart b/tests/web/lax_runtime_type_closure_to_string3_test.dart
index 5f0edff..3c4d521 100644
--- a/tests/web/lax_runtime_type_closure_to_string3_test.dart
+++ b/tests/web/lax_runtime_type_closure_to_string3_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--omit-implicit-checks --lax-runtime-type-to-string --experiment-new-rti
+// dart2jsOptions=--omit-implicit-checks --lax-runtime-type-to-string
 
 import 'package:expect/expect.dart';
 
diff --git a/tests/web/runtime_type_to_string1_test.dart b/tests/web/runtime_type_to_string1_test.dart
index d61335f..76848fb 100644
--- a/tests/web/runtime_type_to_string1_test.dart
+++ b/tests/web/runtime_type_to_string1_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string --experiment-new-rti
+// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
 
 import 'package:expect/expect.dart';