[inspector] added length for scriptParsed notification

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 632448ddf8000203eb47c3cfee865dfce4c93572..d8e18d6eceb3b15b30df063b22f41d28c6c0c93a 100644
--- a/src/inspector/js_protocol.json
+++ b/src/inspector/js_protocol.json
@@ -712,7 +712,8 @@
                     { "name": "isLiveEdit", "type": "boolean", "optional": true, "description": "True, if this script is generated as a result of the live edit operation.", "experimental": true },
                     { "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": "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 }

[caseq, 2017/03/07 21:25:36]

drop "optional", perhaps?

[dgozman, 2017/03/07 21:27:56]

Let's not. This way we don't guarantee anything and can revisit in the future.

[kozy, 2017/03/07 21:34:24]

I prefer to land as optional, otherwise it requires additional preparation work
on frontend to make at least closure compiler happy.

                 ],
                 "description": "Fired when virtual machine parses script. This event is also fired for all known and uncollected scripts upon enabling debugger."
             },
@@ -730,7 +731,8 @@
                     { "name": "executionContextAuxData", "type": "object", "optional": true, "description": "Embedder-specific auxiliary data." },
                     { "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": "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 }
                 ],
                 "description": "Fired when virtual machine fails to parse the script."
             },