- Rationalize the way we use comments.

runtime/vm/assembler.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/assembler.h"
 
 #include "platform/utils.h"
 #include "vm/cpu.h"
 #include "vm/heap.h"
 #include "vm/memory_region.h"
@@ skipping 201 matching lines @@
 void Assembler::Comment(const char* format, ...) {
   if (FLAG_code_comments && (FLAG_disassemble || FLAG_disassemble_optimized)) {
     char buffer[1024];
 
     va_list args;
     va_start(args, format);
     OS::VSNPrint(buffer, sizeof(buffer), format, args);
     va_end(args);
 
     comments_.Add(new CodeComment(buffer_.GetPosition(),
-                                  String::Handle(String::New(buffer,
-                                                             Heap::kOld))));
+                                  String::ZoneHandle(String::New(buffer,
+                                                                 Heap::kOld))));
   }
 }
 
 
 const Code::Comments& Assembler::GetCodeComments() const {
   Code::Comments& comments = Code::Comments::New(comments_.length());
 
   for (intptr_t i = 0; i < comments_.length(); i++) {
     comments.SetPCOffsetAt(i, comments_[i]->pc_offset());
     comments.SetCommentAt(i, comments_[i]->comment());
   }
 
   return comments;
 }
 
 }  // namespace dart