Use a class field instead of global FLAG_debug_code in assember and

src/deoptimizer.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 905 matching lines @@
   double_values_[frame_index].Add(value_desc);
 }
 
 
 LargeObjectChunk* Deoptimizer::CreateCode(BailoutType type) {
   // We cannot run this if the serializer is enabled because this will
   // cause us to emit relocation information for the external
   // references. This is fine because the deoptimizer's code section
   // isn't meant to be serialized at all.
   ASSERT(!Serializer::enabled());
-  bool old_debug_code = FLAG_debug_code;
-  FLAG_debug_code = false;
 
   MacroAssembler masm(NULL, 16 * KB);
+  masm.set_emit_debug_code(false);
   GenerateDeoptimizationEntries(&masm, kNumberOfEntries, type);
   CodeDesc desc;
   masm.GetCode(&desc);
   ASSERT(desc.reloc_size == 0);
 
   LargeObjectChunk* chunk = LargeObjectChunk::New(desc.instr_size, EXECUTABLE);
   memcpy(chunk->GetStartAddress(), desc.buffer, desc.instr_size);
   CPU::FlushICache(chunk->GetStartAddress(), desc.instr_size);
-  FLAG_debug_code = old_debug_code;
   return chunk;
 }
 
 
 Code* Deoptimizer::FindDeoptimizingCodeFromAddress(Address addr) {
   DeoptimizingCodeListNode* node = Deoptimizer::deoptimizing_code_list_;
   while (node != NULL) {
     if (node->code()->contains(addr)) return *node->code();
     node = node->next();
   }
@@ skipping 227 matching lines @@
                           Deoptimizer::HandleWeakDeoptimizedCode);
 }
 
 
 DeoptimizingCodeListNode::~DeoptimizingCodeListNode() {
   GlobalHandles::Destroy(reinterpret_cast<Object**>(code_.location()));
 }
 
 
 } }  // namespace v8::internal