[inspector] introduced stepIntoAsync for chained callbacks

src/js/promise.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, extrasUtils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 103 matching lines @@
       if (instrumenting && %is_promise(throwawayPromise)) {
         SET_PRIVATE(throwawayPromise, promiseHandledBySymbol, deferred.promise);
       }
     }
   } catch (e) {
     %_Call(deferred.reject, UNDEFINED, e);
   }
   return deferred.promise;
 }
 
+%DebugMarkAsPromiseBuiltin(PromiseAll);
+%DebugMarkAsPromiseBuiltin(PromiseRace);
+
 // -------------------------------------------------------------------
 // Install exported functions.
 
 utils.InstallFunctions(GlobalPromise, DONT_ENUM, [
   "all", PromiseAll,
   "race", PromiseRace,
 ]);
 
 })