Correctify instanceof and make it optimizable.

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index 82d5003032e57c94c360fa33466be9efedb17bf5..bf3715a38ffa84af2395d951ebabf44c1d02d027 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -731,11 +731,8 @@ class MacroAssembler: public Assembler {
   // function and jumps to the miss label if the fast checks fail. The
   // function register will be untouched; the other registers may be
   // clobbered.
-  void TryGetFunctionPrototype(Register function,
-                               Register result,
-                               Register scratch,
-                               Label* miss,
-                               bool miss_on_bound_function = false);
+  void TryGetFunctionPrototype(Register function, Register result,
+                               Register scratch, Label* miss);
 
   // Picks out an array index from the hash field.
   // Register use: