Syntax clean up to make clang happy.

Change-Id: I0984c395bbd1ee4b206eafd19915b6f68781dd16
diff --git a/src/object.cc b/src/object.cc
index dd984fc..c8da0fa 100644
--- a/src/object.cc
+++ b/src/object.cc
@@ -526,7 +526,7 @@
 
   // Call the invoke stub associated with the method.
   // Pass everything as arguments.
-  const Method::InvokeStub* stub = GetInvokeStub();
+  Method::InvokeStub* stub = GetInvokeStub();
 
   bool have_executable_code = (GetCode() != NULL);