Revert "Prepare for computation of NewStructure in Resolution."

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

Index: pkg/compiler/lib/src/resolution/members.dart
diff --git a/pkg/compiler/lib/src/resolution/members.dart b/pkg/compiler/lib/src/resolution/members.dart
index e47a5c4eb5652def078b44630b7c474b7d41dd2a..16aa1a2f704e39a5db01677e6b8aa288577b951f 100644
--- a/pkg/compiler/lib/src/resolution/members.dart
+++ b/pkg/compiler/lib/src/resolution/members.dart
@@ -49,8 +49,7 @@ import 'operators.dart';
 import 'send_structure.dart';
 
 import 'constructors.dart' show
-    ConstructorResolver,
-    ConstructorResult;
+    ConstructorResolver;
 import 'label_scope.dart' show
     StatementScope;
 import 'registry.dart' show
@@ -3637,7 +3636,7 @@ class ResolverVisitor extends MappingVisitor<ResolutionResult> {
     bool isConstConstructor = constructor.isConst;
     bool isValidAsConstant = isConstConstructor;
     ConstructorElement redirectionTarget = resolveRedirectingFactory(
-        node, inConstContext: isConstConstructor).element;
+        node, inConstContext: isConstConstructor);
     constructor.immediateRedirectionTarget = redirectionTarget;
 
     Node constructorReference = node.constructorReference;
@@ -3815,7 +3814,7 @@ class ResolverVisitor extends MappingVisitor<ResolutionResult> {
 
   ResolutionResult visitNewExpression(NewExpression node) {
     bool isValidAsConstant = true;
-    ConstructorElement constructor = resolveConstructor(node).element;
+    FunctionElement constructor = resolveConstructor(node);
     final bool isSymbolConstructor = constructor == compiler.symbolConstructor;
     final bool isMirrorsUsedConstant =
         node.isConst && (constructor == compiler.mirrorsUsedConstructor);
@@ -3857,6 +3856,8 @@ class ResolverVisitor extends MappingVisitor<ResolutionResult> {
     // factory constructors.
     registry.registerInstantiatedType(type);
     if (constructor.isGenerativeConstructor && cls.isAbstract) {
+      warning(node, MessageKind.ABSTRACT_CLASS_INSTANTIATION);
+      registry.registerAbstractClassInstantiation();
       isValidAsConstant = false;
     }
 
@@ -3992,15 +3993,14 @@ class ResolverVisitor extends MappingVisitor<ResolutionResult> {
    * Note: this function may return an ErroneousFunctionElement instead of
    * [:null:], if there is no corresponding constructor, class or library.
    */
-  ConstructorResult resolveConstructor(NewExpression node) {
-    return node.accept(new ConstructorResolver(
-        compiler, this, inConstContext: node.isConst));
+  ConstructorElement resolveConstructor(NewExpression node) {
+    return node.accept(new ConstructorResolver(compiler, this));
   }
 
-  ConstructorResult resolveRedirectingFactory(RedirectingFactoryBody node,
+  ConstructorElement resolveRedirectingFactory(RedirectingFactoryBody node,
                                                {bool inConstContext: false}) {
-    return node.accept(new ConstructorResolver(
-        compiler, this, inConstContext: inConstContext));
+    return node.accept(new ConstructorResolver(compiler, this,
+                                               inConstContext: inConstContext));
   }
 
   DartType resolveTypeAnnotation(TypeAnnotation node,