Improve NSM handling.

pkg/front_end/lib/src/fasta/target_implementation.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 library fasta.target_implementation;
 
 import 'package:kernel/target/targets.dart' as backend show Target;
 
-import 'package:kernel/ast.dart' show Arguments, Expression, Member;
-
 import 'builder/builder.dart' show Builder, ClassBuilder, LibraryBuilder;
 
 import 'parser/dart_vm_native.dart' as vm show skipNativeClause;
 
 import '../scanner/token.dart' show Token;
 
 import 'loader.dart' show Loader;
 
 import 'quote.dart' show unescapeString;
 
 import 'target.dart' show Target;
 
 import 'ticker.dart' show Ticker;
 
 import 'translate_uri.dart' show TranslateUri;
 
 /// Provides the implementation details used by a loader for a target.
 abstract class TargetImplementation extends Target {
   final TranslateUri uriTranslator;
 
   final backend.Target backendTarget;
 
   Builder cachedAbstractClassInstantiationError;
   Builder cachedCompileTimeError;
   Builder cachedDuplicatedFieldInitializerError;
   Builder cachedFallThroughError;
-  Builder cachedInvocation;
   Builder cachedNativeAnnotation;
-  Builder cachedNoSuchMethodError;
 
   TargetImplementation(Ticker ticker, this.uriTranslator, this.backendTarget)
       : super(ticker);
 
   /// Creates a [LibraryBuilder] corresponding to [uri], if one doesn't exist
   /// already.
   LibraryBuilder createLibraryBuilder(Uri uri, Uri fileUri, bool isPatch);
 
   /// Add the classes extended or implemented directly by [cls] to [set].
   void addDirectSupertype(ClassBuilder cls, Set<ClassBuilder> set);
@@ skipping 44 matching lines @@
   /// Returns a reference to the constructor of [FallThroughError] error.  The
   /// constructor is expected to accept no arguments.
   Builder getFallThroughError(Loader loader) {
     if (cachedFallThroughError != null) {
       return cachedFallThroughError;
     }
     return cachedFallThroughError =
         loader.coreLibrary.getConstructor("FallThroughError");
   }
 
-  /// Returns a reference to the constructor of [Invocation]. The
-  /// constructor is expected to accept these arguments:
-  ///
-  ///     String functionName,
-  ///     List argumentsDescriptor,
-  ///     List arguments,
-  ///     bool isSuperInvocation
-  Builder getInvocation(Loader loader) {
-    if (cachedInvocation != null) {
-      return cachedInvocation;
-    }
-    return cachedInvocation = loader.coreLibrary
-        .getConstructor("_InvocationMirror", bypassLibraryPrivacy: true);
-  }
-
   /// Returns a reference to the constructor used for creating `native`
   /// annotations. The constructor is expected to accept a single argument of
   /// type String, which is the name of the native method.
   Builder getNativeAnnotation(Loader loader) {
     if (cachedNativeAnnotation != null) return cachedNativeAnnotation;
     LibraryBuilder internal = loader.read(Uri.parse("dart:_internal"), -1);
     return cachedNativeAnnotation = internal.getConstructor("ExternalName");
   }
 
-  /// Returns a reference to the constructor of [NoSuchMethodError] error. The
-  /// constructor is expected to accept these arguments:
-  ///
-  ///     Object receiver, // A class literal for static methods.
-  ///     Symbol memberName,
-  ///     int type, // [computeNoSuchMethodType](kernel/kernel_builder.dart).
-  ///     List positionalArguments,
-  ///     Map<Symbol, dynamic> namedArguments,
-  Builder getNoSuchMethodError(Loader loader) {
-    if (cachedNoSuchMethodError != null) {
-      return cachedNoSuchMethodError;
-    }
-    return cachedNoSuchMethodError = loader.coreLibrary
-        .getConstructor("NoSuchMethodError", constructorName: "_withType");
-  }
-
   void loadExtraRequiredLibraries(Loader loader) {
     for (String uri in backendTarget.extraRequiredLibraries) {
       loader.read(Uri.parse(uri), -1);
     }
   }
 
   /// Whether the `native` language extension is supported within [library].
   ///
   /// The `native` language extension is not part of the language specification,
   /// means something else to each target, and is enabled differently for each
@@ skipping 17 matching lines @@
 
   void readPatchFiles(LibraryBuilder library) {
     assert(library.uri.scheme == "dart");
     List<Uri> patches = uriTranslator.patches[library.uri.path];
     if (patches != null) {
       for (Uri patch in patches) {
         library.loader.read(patch, -1, fileUri: patch, isPatch: true);
       }
     }
   }
-
-  Expression instantiateInvocation(Member target, Expression receiver,
-      String name, Arguments arguments, int offset, bool isSuper) {
-    return backendTarget.instantiateInvocation(
-        target, receiver, name, arguments, offset, isSuper);
-  }
 }