UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36

Steps to reproduce the problem:
1. Create a plain object and a 'new Map' with various keys and values.
2. Where 'obj.' will autocomplete keys, 'map.' only autocompletes the native methods and properties. 'map.get(' does not autocomplete.

What is the expected behavior?

What went wrong?
This is understandable as from a technical perspective these are not own keys and in fact don't even have to be primitive strings, but can by any unique object.

However from an end-user perspective of the Dev Tools, it is a regression compared to the same concept expressed as a plain object. Since Maps are sometimes preferred over a plajn object for storing values at arbitrary string keys, it'd be nice if Dev Tools could make these easier to interact with.

Dev Tools Console recently gained the ability to autocomplete keys without triggering property accessors. It also gained the ability to keep history and therefore autocomplete arbitrary commands including method  string parameters etc.

Perhaps this logic can be extended to also inspect a Map and for the common case of where keys are primitives (numbers, strings, ..) provide intelligent autocompletion.

Did this work before? No 

Chrome version: 54.0.2840.71  Channel: stable
OS Version: OS X 10.11.6
Flash Version: Shockwave Flash 23.0 r0