Add :focus-visible and :user-invalid pseudoclasses

[alexr00]

Prerequisites

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  • Reproduced the problem in Safe Mode: http://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: http://flight-manual.atom.io/hacking-atom/sections/debugging/
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  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

focus-visible and user-invalid are not scoped as entity.other.attribute-name.pseudo-class.css

Steps to Reproduce

1. Write the following CSS

a:hover         { color: red; }
a:focus         { color: red; }
a:focus-visible { color: red; }
a:invalid       { color: red; }
a:user-invalid  { color: red; }

Expected behavior: all of the pseudoclasses are scoped as entity.other.attribute-name.pseudo-class.css.

Actual behavior: focus-visible and user-invalid are scoped as entity.name.tag.custom.css

Reproduces how often: 100%

Versions

Commit 339e960

Originally from @wojtekmaj in microsoft/vscode#124369

[radium-v]

This also affects ::slotted() and ::part().