Revert "Don't try to resolve in the builder."

dart/tests/language/resolution_test.dart

-// Copyright (c) 2012, 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.
-
-int get foo() => 499;
-
-class CompileError {
-  var x;
-
-  // Dart2js tried to resolve factories twice. The second time during building
-  // when it was not allowed to do so.
-  factory CompileError() {
-    return new CompileError.internal(foo);
-  }
-
-  CompileError.internal(this.x);
-}
-
-void main() {
-  Expect.equals(499, new CompileError().x);
-}