Introduce IsUndefined(Isolate*) and IsTheHole(Isolate*)

src/debug/debug-frames.cc

Index: src/debug/debug-frames.cc
diff --git a/src/debug/debug-frames.cc b/src/debug/debug-frames.cc
index 453a77db020166026c87361b233297782378893f..7bf68295d22920667e0b1dd257cfaa7f207124a8 100644
--- a/src/debug/debug-frames.cc
+++ b/src/debug/debug-frames.cc
@@ -135,7 +135,9 @@ void FrameInspector::MaterializeStackLocals(Handle<JSObject> target,
     Handle<Object> value = GetExpression(scope_info->StackLocalIndex(i));
     // TODO(yangguo): We convert optimized out values to {undefined} when they
     // are passed to the debugger. Eventually we should handle them somehow.
-    if (value->IsTheHole()) value = isolate_->factory()->undefined_value();
+    if (value->IsTheHole(isolate_)) {
+      value = isolate_->factory()->undefined_value();
+    }
     if (value->IsOptimizedOut()) value = isolate_->factory()->undefined_value();
     JSObject::SetOwnPropertyIgnoreAttributes(target, name, value, NONE).Check();
   }
@@ -177,7 +179,7 @@ void FrameInspector::UpdateStackLocalsFromMaterializedObject(
     Handle<String> name(scope_info->StackLocalName(i));
     if (ScopeInfo::VariableIsSynthetic(*name)) continue;
     int index = scope_info->StackLocalIndex(i);
-    if (frame_->GetExpression(index)->IsTheHole()) continue;
+    if (frame_->GetExpression(index)->IsTheHole(isolate_)) continue;
     Handle<Object> value =
         Object::GetPropertyOrElement(target, name).ToHandleChecked();
     frame_->SetExpression(index, *value);