Fix CurrentMapForDeprecated() to return MaybeHandle instead of a null handle.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 4c02c90bd82dcc2a4f9d0d71bc2947c873a8da09..76360c5dfb71d7607f6e80c61316baa4247189c3 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -5017,9 +5017,9 @@ static bool CanInlinePropertyAccess(Type* type) {
 static bool IsFastLiteral(Handle<JSObject> boilerplate,
                           int max_depth,
                           int* max_properties) {
-  if (boilerplate->map()->is_deprecated()) {
-    Handle<Object> result = JSObject::TryMigrateInstance(boilerplate);
-    if (result.is_null()) return false;
+  if (boilerplate->map()->is_deprecated() &&
+      !JSObject::TryMigrateInstance(boilerplate)) {
+    return false;
   }
 
   ASSERT(max_depth >= 0 && *max_properties >= 0);