Remove {FIRST,LAST}_SPEC_OBJECT_TYPE.

src/x64/builtins-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 335 matching lines @@
 
     if (create_implicit_receiver) {
       // If the result is an object (in the ECMA sense), we should get rid
       // of the receiver and use the result; see ECMA-262 section 13.2.2-7
       // on page 74.
       Label use_receiver, exit;
       // If the result is a smi, it is *not* an object in the ECMA sense.
       __ JumpIfSmi(rax, &use_receiver);
 
       // If the type of the result (stored in its map) is less than
-      // FIRST_SPEC_OBJECT_TYPE, it is not an object in the ECMA sense.
-      STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE);
-      __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rcx);
+      // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense.
+      STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE);
+      __ CmpObjectType(rax, FIRST_JS_RECEIVER_TYPE, rcx);
       __ j(above_equal, &exit);
 
       // Throw away the result of the constructor invocation and use the
       // on-stack receiver as the result.
       __ bind(&use_receiver);
       __ movp(rax, Operand(rsp, 0));
 
       // Restore the arguments count and leave the construct frame. The
       // arguments count is stored below the reciever and the new.target.
       __ bind(&exit);
@@ skipping 1693 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64