Cleanup useless parameter object_is_smi for NumberToStringStub::GenerateLookupNumberStringCache().

src/ia32/builtins-ia32.cc

 // Copyright 2012 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 1096 matching lines @@
   __ mov(eax, ebx);
 
   // Lookup the argument in the number to string cache.
   Label not_cached, argument_is_string;
   NumberToStringStub::GenerateLookupNumberStringCache(
       masm,
       eax,  // Input.
       ebx,  // Result.
       ecx,  // Scratch 1.
       edx,  // Scratch 2.
-      false,  // Input is known to be smi?
       &not_cached);
   __ IncrementCounter(counters->string_ctor_cached_number(), 1);
   __ bind(&argument_is_string);
   // ----------- S t a t e -------------
   //  -- ebx    : argument converted to string
   //  -- edi    : constructor function
   //  -- esp[0] : return address
   // -----------------------------------
 
   // Allocate a JSValue and put the tagged pointer into eax.
@@ skipping 227 matching lines @@
   Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR);
   generator.Generate();
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32