[inspector] introduced Debugger.scheduleStepIntoAsync

src/inspector/js_protocol.json

Index: src/inspector/js_protocol.json
diff --git a/src/inspector/js_protocol.json b/src/inspector/js_protocol.json
index da5074082662c94a510beba6b968e5fc276ef7a1..459d8d1c495c99ffe189b2290ea11f322d2875d4 100644
--- a/src/inspector/js_protocol.json
+++ b/src/inspector/js_protocol.json
@@ -578,6 +578,11 @@
                 "description": "Stops on the next JavaScript statement."
             },
             {
+                "name": "scheduleStepIntoAsync",
+                "description": "Steps into next scheduled async task if any is scheduled before next pause. Returns success when async task is actually scheduled, returns error if no task was executed or another scheduleStepIntoAsync was called.",

[dgozman, 2017/03/03 19:47:06]

... if no tasks were scheduled ...

[kozy, 2017/03/03 23:14:02]

Done.

+                "experimental": true
+            },
+            {
                 "name": "resume",
                 "description": "Resumes JavaScript execution."
             },