X87: Re-reland: Remove register index/code indirection.

src/x87/macro-assembler-x87.h

Index: src/x87/macro-assembler-x87.h
diff --git a/src/x87/macro-assembler-x87.h b/src/x87/macro-assembler-x87.h
index e567496be3774a397501aa75803f681694b52579..ddf51050229664335b501eb33e529c54d708710c 100644
--- a/src/x87/macro-assembler-x87.h
+++ b/src/x87/macro-assembler-x87.h
@@ -14,16 +14,16 @@ namespace v8 {
 namespace internal {
 
 // Give alias names to registers for calling conventions.
-const Register kReturnRegister0 = {kRegister_eax_Code};
-const Register kReturnRegister1 = {kRegister_edx_Code};
-const Register kJSFunctionRegister = {kRegister_edi_Code};
-const Register kContextRegister = {kRegister_esi_Code};
-const Register kInterpreterAccumulatorRegister = {kRegister_eax_Code};
-const Register kInterpreterRegisterFileRegister = {kRegister_edx_Code};
-const Register kInterpreterBytecodeOffsetRegister = {kRegister_ecx_Code};
-const Register kInterpreterBytecodeArrayRegister = {kRegister_edi_Code};
-const Register kRuntimeCallFunctionRegister = {kRegister_ebx_Code};
-const Register kRuntimeCallArgCountRegister = {kRegister_eax_Code};
+const Register kReturnRegister0 = {Register::kCode_eax};
+const Register kReturnRegister1 = {Register::kCode_edx};
+const Register kJSFunctionRegister = {Register::kCode_edi};
+const Register kContextRegister = {Register::kCode_esi};
+const Register kInterpreterAccumulatorRegister = {Register::kCode_eax};
+const Register kInterpreterRegisterFileRegister = {Register::kCode_edx};
+const Register kInterpreterBytecodeOffsetRegister = {Register::kCode_ecx};
+const Register kInterpreterBytecodeArrayRegister = {Register::kCode_edi};
+const Register kRuntimeCallFunctionRegister = {Register::kCode_ebx};
+const Register kRuntimeCallArgCountRegister = {Register::kCode_eax};
 
 // Spill slots used by interpreter dispatch calling convention.
 const int kInterpreterDispatchTableSpillSlot = -1;