remove dependency on compiler from resolution

pkg/compiler/lib/src/resolution/resolution_common.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.common;
 
 import '../common.dart';
 import '../common/resolution.dart' show Resolution;
-import '../compiler.dart' show Compiler;
 import '../elements/elements.dart';
 import '../tree/tree.dart';
-
 import 'registry.dart' show ResolutionRegistry;
 import 'scope.dart' show Scope;
 import 'type_resolver.dart' show TypeResolver;
 
 class CommonResolverVisitor<R> extends Visitor<R> {
-  final Compiler compiler;
+  final Resolution resolution;
 
-  CommonResolverVisitor(Compiler this.compiler);
+  CommonResolverVisitor(this.resolution);
 
-  DiagnosticReporter get reporter => compiler.reporter;
-
-  Resolution get resolution => compiler.resolution;
+  DiagnosticReporter get reporter => resolution.reporter;
 
   R visitNode(Node node) {
     return reporter.internalError(
         node, 'internal error: Unhandled node: ${node.getObjectDescription()}');
   }
 
   R visitEmptyStatement(Node node) => null;
 
   /** Convenience method for visiting nodes that may be null. */
   R visit(Node node) => (node == null) ? null : node.accept(this);
 
   void addDeferredAction(Element element, void action()) {
-    compiler.enqueuer.resolution.addDeferredAction(element, action);
+    resolution.enqueuer.addDeferredAction(element, action);
   }
 }
 
 /**
  * Common supertype for resolver visitors that record resolutions in a
  * [ResolutionRegistry].
  */
 abstract class MappingVisitor<T> extends CommonResolverVisitor<T> {
   final ResolutionRegistry registry;
   final TypeResolver typeResolver;
 
   /// The current enclosing element for the visited AST nodes.
   Element get enclosingElement;
 
   /// The current scope of the visitor.
   Scope get scope;
 
-  MappingVisitor(Compiler compiler, ResolutionRegistry this.registry)
-      : typeResolver = new TypeResolver(compiler),
-        super(compiler);
+  MappingVisitor(Resolution resolution, this.registry)
+      : typeResolver = new TypeResolver(resolution),
+        super(resolution);
 
   AsyncMarker get currentAsyncMarker => AsyncMarker.SYNC;
 
   /// Add [element] to the current scope and check for duplicate definitions.
   void addToScope(Element element) {
     Element existing = scope.add(element);
     if (existing != element) {
       reportDuplicateDefinition(element.name, element, existing);
     }
   }
@@ skipping 24 matching lines @@
       String name, Spannable definition, Spannable existing) {
     reporter.reportError(
         reporter.createMessage(
             definition, MessageKind.DUPLICATE_DEFINITION, {'name': name}),
         <DiagnosticMessage>[
           reporter.createMessage(
               existing, MessageKind.EXISTING_DEFINITION, {'name': name}),
         ]);
   }
 }