[Devtools] Add stacktrace to protocol for scriptParsed event

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 5cc26946288ffb2ad8e6cf2f88e1b1f500aac667..2f3f3f7f58c0152f04da16ae24f87d47eb09bad8 100644
--- a/src/inspector/js_protocol.json
+++ b/src/inspector/js_protocol.json
@@ -713,7 +713,8 @@
                     { "name": "sourceMapURL", "type": "string", "optional": true, "description": "URL of source map associated with script (if any)." },
                     { "name": "hasSourceURL", "type": "boolean", "optional": true, "description": "True, if this script has sourceURL.", "experimental": true },
                     { "name": "isModule", "type": "boolean", "optional": true, "description": "True, if this script is ES6 module.", "experimental": true },
-                    { "name": "length", "type": "integer", "optional": true, "description": "This script length.", "experimental": true }
+                    { "name": "length", "type": "integer", "optional": true, "description": "This script length.", "experimental": true },
+                    { "name": "stackTrace", "$ref": "Runtime.StackTrace", "optional": true, "description": "JavaScript stack trace if available.", "experimental": true }

[dgozman, 2017/03/16 18:39:03]

- creationStackTrace? evaluationStackTrace?
- please add a meaningful description.

[allada, 2017/03/16 21:02:12]

Per offline comments, I updated description.

                 ],
                 "description": "Fired when virtual machine parses script. This event is also fired for all known and uncollected scripts upon enabling debugger."
             },