Add test_b(Operand, immediate) to ia32 assembler, and use it where possible. ...

src/ia32/assembler-ia32.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 619 matching lines @@
   void subb(const Operand& dst, int8_t imm8);
   void subb(Register dst, const Operand& src);
   void sub(const Operand& dst, const Immediate& x);
   void sub(Register dst, const Operand& src);
   void sub(const Operand& dst, Register src);
 
   void test(Register reg, const Immediate& imm);
   void test(Register reg, const Operand& op);
   void test_b(Register reg, const Operand& op);
   void test(const Operand& op, const Immediate& imm);
+  void test_b(const Operand& op, uint8_t imm8);
 
   void xor_(Register dst, int32_t imm32);
   void xor_(Register dst, const Operand& src);
   void xor_(const Operand& src, Register dst);
   void xor_(const Operand& dst, const Immediate& x);
 
   // Bit operations.
   void bt(const Operand& dst, Register src);
   void bts(const Operand& dst, Register src);
 
@@ skipping 282 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_ASSEMBLER_IA32_H_