Some MaybeHandles related cleanups.

src/stub-cache.cc

Index: src/stub-cache.cc
diff --git a/src/stub-cache.cc b/src/stub-cache.cc
index 91d31ea3077b3feba48290ea5de6e1b470fff1b7..5f3a74c83713c26b80e3abb2148aa3da41dd2b97 100644
--- a/src/stub-cache.cc
+++ b/src/stub-cache.cc
@@ -499,7 +499,7 @@ RUNTIME_FUNCTION(MaybeObject*, StoreCallbackProperty) {
   PropertyCallbackArguments
       custom_args(isolate, callback->data(), receiver, holder);
   custom_args.Call(fun, v8::Utils::ToLocal(str), v8::Utils::ToLocal(value));
-  RETURN_IF_SCHEDULED_EXCEPTION(isolate);
+  RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate);
   return *value;
 }
 
@@ -539,7 +539,7 @@ RUNTIME_FUNCTION(MaybeObject*, LoadPropertyWithInterceptorOnly) {
     HandleScope scope(isolate);
     v8::Handle<v8::Value> r =
         callback_args.Call(getter, v8::Utils::ToLocal(name));
-    RETURN_IF_SCHEDULED_EXCEPTION(isolate);
+    RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate);
     if (!r.IsEmpty()) {
       Handle<Object> result = v8::Utils::OpenHandle(*r);
       result->VerifyApiCallResultType();