Debugger: load debugger builtins as normal native JS.

src/debug/debug-evaluate.cc

 // Copyright 2015 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 "src/debug/debug-evaluate.h"
 
 #include "src/accessors.h"
 #include "src/contexts.h"
 #include "src/debug/debug.h"
 #include "src/debug/debug-frames.h"
 #include "src/debug/debug-scopes.h"
 #include "src/isolate.h"
 
 namespace v8 {
 namespace internal {
 
-
 static inline bool IsDebugContext(Isolate* isolate, Context* context) {
-  // Try to unwrap script context if it exist.
-  if (context->IsScriptContext()) context = context->previous();
-  DCHECK_NOT_NULL(context);
-  return context == *isolate->debug()->debug_context();
+  return context->native_context() == *isolate->debug()->debug_context();
 }
 
 
 MaybeHandle<Object> DebugEvaluate::Global(Isolate* isolate,
                                           Handle<String> source,
                                           bool disable_break,
                                           Handle<Object> context_extension) {
   // Handle the processing of break.
   DisableBreak disable_break_scope(isolate->debug(), disable_break);
 
@@ skipping 275 matching lines @@
       // to materialize.
       return target;
   }
 
   return isolate_->factory()->NewCatchContext(
       function, target, isolate_->factory()->this_string(), receiver);
 }
 
 }  // namespace internal
 }  // namespace v8