Fix GC issue in instanceof stub...

src/ia32/code-stubs-ia32.cc

 // Copyright 2010 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 5158 matching lines @@
     if (HasArgsInRegisters()) {
       // Push arguments below return address.
       __ pop(scratch);
       __ push(object);
       __ push(function);
       __ push(scratch);
     }
     __ InvokeBuiltin(Builtins::INSTANCE_OF, JUMP_FUNCTION);
   } else {
     // Call the builtin and convert 0/1 to true/false.
+    __ EnterInternalFrame();
     __ push(object);
     __ push(function);
     __ InvokeBuiltin(Builtins::INSTANCE_OF, CALL_FUNCTION);
+    __ LeaveInternalFrame();
     NearLabel true_value, done;
     __ test(eax, Operand(eax));
     __ j(zero, &true_value);
     __ mov(eax, Factory::false_value());
     __ jmp(&done);
     __ bind(&true_value);
     __ mov(eax, Factory::true_value());
     __ bind(&done);
     __ ret((HasArgsInRegisters() ? 0 : 2) * kPointerSize);
   }
@@ skipping 1314 matching lines @@
   // Do a tail call to the rewritten stub.
   __ jmp(Operand(edi));
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32