Move computeType to TypedElement and TypeDeclarationElement.

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.
 
 part of resolution;
 
 class ResolverTask extends CompilerTask {
   final ConstantCompiler constantCompiler;
 
   ResolverTask(Compiler compiler, this.constantCompiler) : super(compiler);
@@ skipping 716 matching lines @@
     if (lookupElement == null) {
       compiler.internalError(member,
           "No abstract field for accessor");
     } else if (!identical(lookupElement.kind, ElementKind.ABSTRACT_FIELD)) {
       if (lookupElement.isErroneous || lookupElement.isAmbiguous) return;
       compiler.internalError(member,
           "Inaccessible abstract field for accessor");
     }
     AbstractFieldElement field = lookupElement;
 
-    MethodElementX getter = field.getter;
+    GetterElementX getter = field.getter;
     if (getter == null) return;
-    MethodElementX setter = field.setter;
+    SetterElementX setter = field.setter;
     if (setter == null) return;
     int getterFlags = getter.modifiers.flags | Modifiers.FLAG_ABSTRACT;
     int setterFlags = setter.modifiers.flags | Modifiers.FLAG_ABSTRACT;
     if (!identical(getterFlags, setterFlags)) {
       final mismatchedFlags =
         new Modifiers.withFlags(null, getterFlags ^ setterFlags);
       compiler.reportError(
           field.getter,
           MessageKind.GETTER_MISMATCH,
           {'modifiers': mismatchedFlags});
@@ skipping 292 matching lines @@
 
   void reportDuplicateDefinition(String name,
                                  Spannable definition,
                                  Spannable existing) {
     compiler.reportError(definition,
         MessageKind.DUPLICATE_DEFINITION, {'name': name});
     compiler.reportInfo(existing,
         MessageKind.EXISTING_DEFINITION, {'name': name});
   }
 }