[inspector] introduced stepIntoAsync for chained callbacks

src/js/promise.js

Index: src/js/promise.js
diff --git a/src/js/promise.js b/src/js/promise.js
index 95ab793591c04e3f2c3932a89b85f2742842cadf..6f9c7b5348494573861f1abca46eaf70a7b57794 100644
--- a/src/js/promise.js
+++ b/src/js/promise.js
@@ -95,6 +95,8 @@ function PromiseAll(iterable) {
   return deferred.promise;
 }
 
+%DebugMarkPromiseAllOrRace(PromiseAll);
+
 // ES#sec-promise.race
 // Promise.race ( iterable )
 function PromiseRace(iterable) {
@@ -129,6 +131,8 @@ function PromiseRace(iterable) {
   return deferred.promise;
 }
 
+%DebugMarkPromiseAllOrRace(PromiseRace);
+
 // -------------------------------------------------------------------
 // Install exported functions.