Add an element for mixin applications. For now, the resolver complains about mixin applications -- …

sdk/lib/_internal/compiler/implementation/elements/modelx.dart

 // Copyright (c) 2013, 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 elements.modelx;
 
 import 'dart:uri';
 
 import 'elements.dart';
 import '../../compiler.dart' as api;
@@ skipping 1383 matching lines @@
   }
 
   /**
    * Return [:true:] if this element is the [:Object:] class for the [compiler].
    */
   bool isObject(Compiler compiler) =>
       identical(declaration, compiler.objectClass);
 
   Link<DartType> get typeVariables => thisType.typeArguments;
 
-  ClassElement ensureResolved(Compiler compiler) {
-    if (resolutionState == STATE_NOT_STARTED) {
-      compiler.resolver.resolveClass(this);
-    }
-    return this;
-  }
-
   void addBackendMember(Element member) {
     backendMembers = backendMembers.prepend(member);
   }
 
   void reverseBackendMembers() {
     backendMembers = backendMembers.reverse();
   }
 
   /**
    * Lookup local members in the class. This will ignore constructors.
@@ skipping 319 matching lines @@
   }
 
   bool get hasConstructor {
     // Search in scope to be sure we search patched constructors.
     for (var element in localScope.values) {
       if (element.isConstructor()) return true;
     }
     return false;
   }
 
+  ClassElement ensureResolved(Compiler compiler) {
+    if (resolutionState == STATE_NOT_STARTED) {
+      compiler.resolver.resolveClass(this);
+    }
+    return this;
+  }
+
   Scope buildScope() => new ClassScope(enclosingElement.buildScope(), this);
 
   String toString() {
     if (origin != null) {
       return 'patch ${super.toString()}';
     } else if (patch != null) {
       return 'origin ${super.toString()}';
     } else {
       return super.toString();
     }
   }
 }
 
 class MixinApplicationElementX extends BaseClassElementX {
-  MixinApplicationElementX(SourceString name,
-                           Element enclosing,
-                           int id,
-                           int initialState)
-      : super(name, enclosing, id, initialState);
+  final MixinApplication cachedNode;

[ahe, 2013/01/18 12:15:48]

If it is final, you can just call it "node".

 
   // TODO(kasperl): The analyzer complains when I don't have these two
   // fields. This is pretty weird. I cannot replace them with getters.
   final ClassElement patch = null;
   final ClassElement origin = null;
 
+  MixinApplicationElementX(SourceString name, Element enclosing, int id,
+                           this.cachedNode)
+      : super(name, enclosing, id, STATE_NOT_STARTED);
+
   bool get hasConstructor => false;
   bool get hasLocalScopeMembers => false;
 
+  Token position() => cachedNode.getBeginToken();
+
+  Node parseNode(DiagnosticListener listener) => cachedNode;
+
+  ClassElement ensureResolved(Compiler compiler) {
+    if (resolutionState == STATE_NOT_STARTED) {
+      compiler.resolver.resolveMixinApplication(this);
+    }
+    return this;
+  }
+
   Element localLookup(SourceString name) {
     // TODO(kasperl): Unimplemented for now.
     return null;
   }
 
   void forEachLocalMember(void f(Element member)) {
     // TODO(kasperl): Unimplemented for now.
   }
 
   void addMember(Element element, DiagnosticListener listener) {
@@ skipping 131 matching lines @@
 
   MetadataAnnotation ensureResolved(Compiler compiler) {
     if (resolutionState == STATE_NOT_STARTED) {
       compiler.resolver.resolveMetadataAnnotation(this);
     }
     return this;
   }
 
   String toString() => 'MetadataAnnotation($value, $resolutionState)';
 }