Use new.target in favor of %_IsConstructCall intrinsic (1).

src/js/messages.js

 // 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.
 
 // -------------------------------------------------------------------
 
 (function(global, utils) {
 
 %CheckIsBootstrapping();
 
@@ skipping 919 matching lines @@
     %FunctionSetInstanceClassName(ErrorPrototype, 'Error');
     %FunctionSetPrototype(f, new ErrorPrototype());
   } else {
     %FunctionSetPrototype(f, new GlobalError());
     %InternalSetPrototype(f, GlobalError);
   }
   %FunctionSetInstanceClassName(f, 'Error');
   %AddNamedProperty(f.prototype, 'constructor', f, DONT_ENUM);
   %AddNamedProperty(f.prototype, 'name', name, DONT_ENUM);
   %SetCode(f, function(m) {
-    if (%_IsConstructCall()) {
+    if (!IS_UNDEFINED(new.target)) {
       try { captureStackTrace(this, f); } catch (e) { }
       // Define all the expected properties directly on the error
       // object. This avoids going through getters and setters defined
       // on prototype objects.
       if (!IS_UNDEFINED(m)) {
         %AddNamedProperty(this, 'message', TO_STRING(m), DONT_ENUM);
       }
     } else {
       return new f(m);
     }
@@ skipping 83 matching lines @@
 utils.Export(function(to) {
   to.ErrorToString = ErrorToString;
   to.MakeError = MakeError;
   to.MakeRangeError = MakeRangeError;
   to.MakeSyntaxError = MakeSyntaxError;
   to.MakeTypeError = MakeTypeError;
   to.MakeURIError = MakeURIError;
 });
 
 });