Libraries completing general.

[CMLL]

As mentioned in #1157
triggering an auto completion into a standard library or config search library shows the general completion list on LS version 0.2.98.0.

General results of triggering autocompletion on an empty string.

Results of triggering completion on hashlib, os and sys.

There was a moment when getting a completion of sys. got me a different result, which seemed correct, but that was maybe 1 in 15 or more attempts that worked, all other times it was like the above image.

The behaviour was the same if I forced the completion by pressing the key shortcut (Ctrl + Space) in my particular case (think that's the default one) or if I typed the . and let the completion happen organically.

Edit:
It also happens with recently declared variables. Same as with modules, most of the times it shows the incorrect completions and sometimes shows the correct ones.

Also happens with 0.2.96.

[MikhailArkhipov]

There are tests for this and 0.2 is long past. Feel free to reopen if it happens.