[inspector] added creation frame for async call chains for promises

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 1ff8656c66b2937ce43e9c5b90d836fdf05e2339..f83c306d6ebc1b577cd5ae24ab19f434478454f1 100644
--- a/src/inspector/js_protocol.json
+++ b/src/inspector/js_protocol.json
@@ -201,7 +201,8 @@
                 "properties": [
                     { "name": "description", "type": "string", "optional": true, "description": "String label of this stack trace. For async traces this may be a name of the function that initiated the async call." },
                     { "name": "callFrames", "type": "array", "items": { "$ref": "CallFrame" }, "description": "JavaScript function name." },
-                    { "name": "parent", "$ref": "StackTrace", "optional": true, "description": "Asynchronous JavaScript stack trace that preceded this stack, if available." }
+                    { "name": "parent", "$ref": "StackTrace", "optional": true, "description": "Asynchronous JavaScript stack trace that preceded this stack, if available." },
+                    { "name": "creationFrame", "$ref": "CallFrame", "optional": true, "experimental": true, "description": "Frame where asynchronous task was created, if available." }

[dgozman, 2017/01/24 01:02:41]

- promiseCreationFrame
- Creation frame of the Promise which produced the next synchronous trace when
resolved, if available.

[kozy, 2017/01/24 21:43:39]

Done.

                 ]
             }
         ],