Queueing fix, cleanups.

runtime/vm/object.cc

 // 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 3099 matching lines @@
   return result.raw();
 }
 
 
 // Ensure that top level parsing of the class has been done.
 RawError* Class::EnsureIsFinalized(Thread* thread) const {
   // Finalized classes have already been parsed.
   if (is_finalized()) {
     return Error::null();
   }
+  ASSERT(thread->IsMutatorThread());
   ASSERT(thread != NULL);
   const Error& error = Error::Handle(
       thread->zone(), Compiler::CompileClass(*this));
   if (!error.IsNull()) {
     ASSERT(thread == Thread::Current());
     if (thread->long_jump_base() != NULL) {
       Report::LongJump(error);
       UNREACHABLE();
     }
   }
@@ skipping 18794 matching lines @@
   return tag_label.ToCString();
 }
 
 
 void UserTag::PrintJSONImpl(JSONStream* stream, bool ref) const {
   Instance::PrintJSONImpl(stream, ref);
 }
 
 
 }  // namespace dart