- Use NoHandleScope in leaf methods

vm/raw_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/raw_object.h"
 
 #include "vm/class_table.h"
 #include "vm/freelist.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 15 matching lines @@
     return;
   }
   // Validate that the tags_ field is sensible.
   uword tags = ptr()->tags_;
   ASSERT((tags & 0x000000f0) == 0);
 #endif
 }
 
 
 intptr_t RawObject::SizeFromClass() const {
-  NoHandleScope no_handles(Isolate::Current());
+  Isolate* isolate = Isolate::Current();
+  NoHandleScope no_handles(isolate);
 
   // Only reasonable to be called on heap objects.
   ASSERT(IsHeapObject());
 
-  RawClass* raw_class = Isolate::Current()->class_table()->At(GetClassId());
+  RawClass* raw_class = isolate->class_table()->At(GetClassId());
   intptr_t instance_size = raw_class->ptr()->instance_size_;
   ObjectKind instance_kind = raw_class->ptr()->instance_kind_;
 
   if (instance_size == 0) {
     switch (instance_kind) {
       case kTokenStream: {
         const RawTokenStream* raw_tokens =
             reinterpret_cast<const RawTokenStream*>(this);
         intptr_t tokens_length = Smi::Value(raw_tokens->ptr()->length_);
         instance_size = TokenStream::InstanceSize(tokens_length);
@@ skipping 888 matching lines @@
 intptr_t RawJSRegExp::VisitJSRegExpPointers(RawJSRegExp* raw_obj,
                                             ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   intptr_t length = Smi::Value(raw_obj->ptr()->data_length_);
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return JSRegExp::InstanceSize(length);
 }
 
 }  // namespace dart