Do not eagerly instantiate accessors' JSFunction.

src/runtime/runtime-debug.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 "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/debug/debug.h"
 #include "src/debug/debug-evaluate.h"
 #include "src/debug/debug-frames.h"
@@ skipping 314 matching lines @@
       isolate->factory()->NewFixedArray(has_js_accessors ? 6 : 3);
   details->set(0, *value);
   // TODO(verwaest): Get rid of this random way of handling interceptors.
   PropertyDetails d = it.state() == LookupIterator::INTERCEPTOR
                           ? PropertyDetails::Empty()
                           : it.property_details();
   details->set(1, d.AsSmi());
   details->set(
       2, isolate->heap()->ToBoolean(it.state() == LookupIterator::INTERCEPTOR));
   if (has_js_accessors) {
-    AccessorPair* accessors = AccessorPair::cast(*maybe_pair);
+    Handle<AccessorPair> accessors = Handle<AccessorPair>::cast(maybe_pair);
     details->set(3, isolate->heap()->ToBoolean(has_caught));
-    details->set(4, accessors->GetComponent(ACCESSOR_GETTER));
-    details->set(5, accessors->GetComponent(ACCESSOR_SETTER));
+    Handle<Object> getter =
+        AccessorPair::GetComponent(accessors, ACCESSOR_GETTER);
+    Handle<Object> setter =
+        AccessorPair::GetComponent(accessors, ACCESSOR_SETTER);
+    details->set(4, *getter);
+    details->set(5, *setter);
   }
 
   return *isolate->factory()->NewJSArrayWithElements(details);
 }
 
 
 RUNTIME_FUNCTION(Runtime_DebugGetProperty) {
   HandleScope scope(isolate);
 
   DCHECK(args.length() == 2);
@@ skipping 1320 matching lines @@
   return Smi::FromInt(isolate->debug()->is_active());
 }
 
 
 RUNTIME_FUNCTION(Runtime_DebugBreakInOptimizedCode) {
   UNIMPLEMENTED();
   return NULL;
 }
 }  // namespace internal
 }  // namespace v8