Refactor Parsing to remove compiler dependency

pkg/compiler/lib/src/resolution/class_hierarchy.dart

 // Copyright (c) 2015, 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.resolution.class_hierarchy;
 
 import '../common.dart';
 import '../common/resolution.dart' show Feature;
 import '../compiler.dart' show Compiler;
 import '../core_types.dart' show CoreClasses, CoreTypes;
@@ skipping 337 matching lines @@
       ConstructorElement target, ClassElement enclosing) {
     FunctionElement constructor =
         new SynthesizedConstructorElementX.notForDefault(
             target.name, target, enclosing);
     constructor.computeType(resolution);
     return constructor;
   }
 
   void doApplyMixinTo(MixinApplicationElementX mixinApplication,
       DartType supertype, DartType mixinType) {
-    Node node = mixinApplication.parseNode(resolution.parsing);
+    Node node = mixinApplication.parseNode(resolution.parsingContext);
 
     if (mixinApplication.supertype != null) {
       // [supertype] is not null if there was a cycle.
       assert(invariant(node, compiler.compilationFailed));
       supertype = mixinApplication.supertype;
       assert(invariant(node, supertype.isObject));
     } else {
       mixinApplication.supertype = supertype;
     }
 
@@ skipping 276 matching lines @@
     Identifier selector = node.selector.asIdentifier();
     var e = prefixElement.lookupLocalMember(selector.source);
     if (e == null || !e.impliesType) {
       reporter.reportErrorMessage(node.selector,
           MessageKind.CANNOT_RESOLVE_TYPE, {'typeName': node.selector});
       return;
     }
     loadSupertype(e, node);
   }
 }