Overloads crowd out documentation in IntelliSense

[mattbierner]

Issue Type: Bug

Repro

1. In a python file:

import re

2. Type re.sub and look at IntelliSense

Bug
The list of 4 overloads for re.sub crowds out the arguably much more useful documentation on what this function does

Compared this with a similar overloaded function in JS/TS, which lists the common overload first and then indicates that additional overloads are available:

Extension version: 2021.3.4
VS Code version: Code - Insiders 1.55.0-insider (05ce54df77c242b1b8ea5fd93d720c62fdb183e6, 2021-03-25T05:12:59.457Z)
OS version: Darwin x64 20.3.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz (8 x 4200)
GPU Status	2d_canvas: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	3, 3, 3
Memory (System)	40.00GB (0.03GB free)
Process Argv	--crash-reporter-id cefe23df-690f-4b1b-9ce9-e004d3be2745
Screen Reader	no
VM	0%

[mattbierner]

Discussed in #612. However that fix for that issue was improving the formatting of the overload. This issue is about all these overloads being listed at the top of IntelliSense

[mattbierner]

Another example for the open function:

[heejaechang]

@judej we need decision on this. I think we talked about it long time ago but didn't decide. and I think Savannah did some user study on this as well?

[judej]

Converting this issue to an enhancement discussion for comments and upvotes