Merge #5451 #5463 #5465 #5466

Merge #5451 #5463 #5465 #5466

5451: Highlight more cases of SyntaxKind when it is a punctuation r=matklad a=GrayJack

This maybe closes #5406
Closes  #5453

Separate what one expect to be a punctuation semantic token (like `,`, `;`, `(`, etc), and what is not (`&`, `::`, `+`, etc)

5463: Bump lexer r=matklad a=kjeremy

Since we're now on rust 1.45

5465: Bump chalk r=matklad a=kjeremy

5466: Do not show default types in function and closure return values r=matklad a=SomeoneToIgnore

Avoid things like
<img width="522" alt="image" src="https://user-images.githubusercontent.com/2690773/87985936-1bbe4f80-cae5-11ea-9b8a-5383d896c296.png">

Co-authored-by: GrayJack <gr41.j4ck@gmail.com>
Co-authored-by: kjeremy <kjeremy@gmail.com>
Co-authored-by: Kirill Bulatov <mail4score@gmail.com>