Filter out maps from different global context when collecting type feedback.

src/stub-cache.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 230 matching lines @@
 
   // Update cache for entry hash(name, map).
   Code* Set(String* name, Map* map, Code* code);
 
   // Clear the lookup table (@ mark compact collection).
   void Clear();
 
   // Collect all maps that match the name and flags.
   void CollectMatchingMaps(SmallMapList* types,
                            String* name,
-                           Code::Flags flags);
+                           Code::Flags flags,
+                           Handle<Context> global_context);
 
   // Generate code for probing the stub cache table.
   // Arguments extra and extra2 may be used to pass additional scratch
   // registers. Set to no_reg if not needed.
   void GenerateProbe(MacroAssembler* masm,
                      Code::Flags flags,
                      Register receiver,
                      Register name,
                      Register scratch,
                      Register extra,
@@ skipping 595 matching lines @@
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_