Clean up debugger flags.

src/bootstrapper.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "bootstrapper.h"
 
 #include "accessors.h"
 #include "isolate-inl.h"
 #include "natives.h"
 #include "snapshot.h"
@@ skipping 1403 matching lines @@
           ExperimentalNatives::GetRawScriptSource(index)),
       false);
   return CompileNative(isolate, name, source_code);
 }
 
 
 bool Genesis::CompileNative(Isolate* isolate,
                             Vector<const char> name,
                             Handle<String> source) {
   HandleScope scope(isolate);
-  isolate->debugger()->set_compiling_natives(true);
+  Debugger::IgnoreScope compiling_natives(isolate->debugger());
   // During genesis, the boilerplate for stack overflow won't work until the
   // environment has been at least partially initialized. Add a stack check
   // before entering JS code to catch overflow early.
   StackLimitCheck check(isolate);
   if (check.HasOverflowed()) return false;
 
   bool result = CompileScriptCached(isolate,
                                     name,
                                     source,
                                     NULL,
                                     NULL,
                                     Handle<Context>(isolate->context()),
                                     true);
   ASSERT(isolate->has_pending_exception() != result);
   if (!result) isolate->clear_pending_exception();
-  isolate->debugger()->set_compiling_natives(false);
   return result;
 }
 
 
 bool Genesis::CompileScriptCached(Isolate* isolate,
                                   Vector<const char> name,
                                   Handle<String> source,
                                   SourceCodeCache* cache,
                                   v8::Extension* extension,
                                   Handle<Context> top_context,
@@ skipping 1203 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal