- Properly load the core libraries as libraries and not as scripts.

runtime/vm/parser.h

 // 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.
 
 #ifndef VM_PARSER_H_
 #define VM_PARSER_H_
 
 #include "include/dart_api.h"
 
 #include "lib/invocation_mirror.h"
@@ skipping 318 matching lines @@
   // Support for parsing of scripts.
   void ParseTopLevel();
   void ParseClassDefinition(const GrowableObjectArray& pending_classes);
   void ParseMixinTypedef(const GrowableObjectArray& pending_classes);
   void ParseTypedef(const GrowableObjectArray& pending_classes);
   void ParseTopLevelVariable(TopLevel* top_level);
   void ParseTopLevelFunction(TopLevel* top_level);
   void ParseTopLevelAccessor(TopLevel* top_level);
 
   // Support for parsing libraries.
-  Dart_Handle CallLibraryTagHandler(Dart_LibraryTag tag,
-                                    intptr_t token_pos,
-                                    const String& url);
+  RawObject* CallLibraryTagHandler(Dart_LibraryTag tag,
+                                   intptr_t token_pos,
+                                   const String& url);
   void ParseIdentList(GrowableObjectArray* names);
   void ParseLibraryDefinition();
   void ParseLibraryName();
   void ParseLibraryImportExport();
   void ParseLibraryPart();
   void ParsePartHeader();
   void ParseLibraryNameObsoleteSyntax();
   void ParseLibraryImportObsoleteSyntax();
   void ParseLibraryIncludeObsoleteSyntax();
 
@@ skipping 321 matching lines @@
   // code at all points in the try block where an exit from the block is
   // done using 'return', 'break' or 'continue' statements.
   TryBlocks* try_blocks_list_;
 
   DISALLOW_COPY_AND_ASSIGN(Parser);
 };
 
 }  // namespace dart
 
 #endif  // VM_PARSER_H_