First step of support for parsing and ignoring generic methods.

pkg/compiler/lib/src/parser/parser_task.dart

 // Copyright (c) 2011, 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 dart2js.parser.task;
 
 import '../common.dart';
 import '../common/tasks.dart' show
     CompilerTask;
 import '../compiler.dart' show
     Compiler;
 import '../elements/modelx.dart' show
     ElementX;
 import '../tokens/token.dart' show
     Token;
 import '../tree/tree.dart' show
     Node;
 
 import 'element_listener.dart' show
-    ScannerOptions;
+    ScannerOptions,
+    ParserOptions;
 import 'listener.dart' show
     ParserError;
 import 'node_listener.dart' show
     NodeListener;
 import 'parser.dart' show
     Parser;
 
 class ParserTask extends CompilerTask {
   final bool _enableConditionalDirectives;
+  final bool _enableGenericMethods;
 
-  ParserTask(Compiler compiler,
-             {bool enableConditionalDirectives: false})
-      : this._enableConditionalDirectives = enableConditionalDirectives,
+  ParserTask(Compiler compiler, ParserOptions parserOptions)
+      : this._enableConditionalDirectives =
+            parserOptions.enableConditionalDirectives,
+        this._enableGenericMethods = parserOptions.enableGenericMethods,
         super(compiler);
 
   String get name => 'Parser';
 
   Node parse(ElementX element) {
     return measure(() => element.parseNode(compiler.parsing));
   }
 
   Node parseCompilationUnit(Token token) {
     return measure(() {
       NodeListener listener = new NodeListener(
           const ScannerOptions(), reporter, null);
       Parser parser = new Parser(
-          listener, enableConditionalDirectives: _enableConditionalDirectives);
+          listener,
+          enableConditionalDirectives: _enableConditionalDirectives,
+          enableGenericMethods: _enableGenericMethods);
       try {
         parser.parseUnit(token);
       } on ParserError catch(_) {
         assert(invariant(token, compiler.compilationFailed));
         return listener.makeNodeList(0, null, null, '\n');
       }
       Node result = listener.popNode();
       assert(listener.nodes.isEmpty);
       return result;
     });
   }
 }