Fix size problem spotted by sra@, where iae and ioore were always put in the codegen work list.

tests/compiler/dart2js/compiler_helper.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.
 // Test constant folding.
 
 library compiler_helper;
 
 import "dart:uri";
 
 import "../../../sdk/lib/_internal/compiler/implementation/elements/elements.dart"
@@ skipping 28 matching lines @@
   var context = new js.JavaScriptItemCompilationContext();
   leg.ResolutionWorkItem resolutionWork =
       new leg.ResolutionWorkItem(element, context);
   resolutionWork.run(compiler, compiler.enqueuer.resolution);
   leg.CodegenWorkItem work =
       new leg.CodegenWorkItem(element, resolutionWork.resolutionTree, context);
   work.run(compiler, compiler.enqueuer.codegen);
   return compiler.enqueuer.codegen.assembleCode(element);
 }
 
-MockCompiler compilerFor(String code, Uri uri, {bool analyzeAll: false}) {
-  MockCompiler compiler = new MockCompiler(analyzeAll: analyzeAll);
+MockCompiler compilerFor(String code, Uri uri,
+                         {bool analyzeAll: false,
+                          String coreSource: DEFAULT_CORELIB}) {
+  MockCompiler compiler = new MockCompiler(
+      analyzeAll: analyzeAll, coreSource: coreSource);
   compiler.sourceFiles[uri.toString()] = new SourceFile(uri.toString(), code);
   return compiler;
 }
 
-String compileAll(String code) {
+String compileAll(String code, {String coreSource: DEFAULT_CORELIB}) {
   Uri uri = new Uri.fromComponents(scheme: 'source');
-  MockCompiler compiler = compilerFor(code, uri);
+  MockCompiler compiler = compilerFor(code, uri, coreSource: coreSource);
   compiler.runCompiler(uri);
   Expect.isFalse(compiler.compilationFailed,
                  'Unexpected compilation error');
   return compiler.assembledCode;
 }
 
 dynamic compileAndCheck(String code,
                         String name,
                         check(MockCompiler compiler, lego.Element element)) {
   Uri uri = new Uri.fromComponents(scheme: 'source');
@@ skipping 58 matching lines @@
   final xRe = new RegExp('\\bx\\b');
   regexp = regexp.replaceAll(xRe, '(?:$anyIdentifier)');
   final spaceRe = new RegExp('\\s+');
   regexp = regexp.replaceAll(spaceRe, '(?:\\s*)');
   if (shouldMatch) {
     Expect.isTrue(new RegExp(regexp).hasMatch(generated));
   } else {
     Expect.isFalse(new RegExp(regexp).hasMatch(generated));
   }
 }