Fix GC issue in instanceof stub...

src/ia32/lithium-codegen-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 1749 matching lines @@
   __ mov(eax, Factory::the_hole_value());  // Patched to either true or false.
   __ jmp(&done);
 
   // The inlined call site cache did not match. Check null and string before
   // calling the deferred code.
   __ bind(&cache_miss);
   // Null is not instance of anything.
   __ cmp(object, Factory::null_value());
   __ j(equal, &false_result);
 
-  // String values is not instance of anything.
+  // String values are not instances of anything.
   Condition is_string = masm_->IsObjectStringType(object, temp, temp);
   __ j(is_string, &false_result);
 
   // Go to the deferred code.
   __ jmp(deferred->entry());
 
   __ bind(&false_result);
   __ mov(ToRegister(instr->result()), Factory::false_value());
 
   // Here result has either true or false. Deferred code also produces true or
@@ skipping 1622 matching lines @@
   ASSERT(!environment->HasBeenRegistered());
   RegisterEnvironmentForDeoptimization(environment);
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal