Remove CompilerCancelledException.

dart/tests/compiler/dart2js/mock_compiler.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.
 
 library mock_compiler;
 
 import "package:expect/expect.dart";
 import 'dart:async';
 import 'dart:collection';
 
@@ skipping 194 matching lines @@
 
   TreeElementMapping resolveNodeStatement(Node tree,
                                           ExecutableElement element) {
     ResolverVisitor visitor =
         new ResolverVisitor(this, element,
             new ResolutionRegistry.internal(this,
                 new CollectingTreeElements(element)));
     if (visitor.scope is LibraryScope) {
       visitor.scope = new MethodScope(visitor.scope, element);
     }
-    try {
-      visitor.visit(tree);
-    } on CompilerCancelledException catch (_) {
-      // Ignored.
-
-      // TODO(ahe): Don't ignore CompilerCancelledException, instead, fix
-      // pkg/compiler/lib/src/resolution/members.dart.
-    }
+    visitor.visit(tree);
     visitor.scope = new LibraryScope(element.library);
     return visitor.registry.mapping;
   }
 
   resolverVisitor() {
     Element mockElement = new MockElement(mainApp.entryCompilationUnit);
     ResolverVisitor visitor =
         new ResolverVisitor(this, mockElement,
           new ResolutionRegistry.internal(this,
               new CollectingTreeElements(mockElement)));
@@ skipping 163 matching lines @@
   MockElement(Element enclosingElement)
       : super('', ElementKind.FUNCTION, Modifiers.EMPTY,
               enclosingElement, false);
 
   get node => null;
 
   parseNode(_) => null;
 
   bool get hasNode => false;
 }