Types definitions for PHP 8.2

[KapitanOczywisty]

Implemented RFCs: https://wiki.php.net/rfc/null-false-standalone-types https://wiki.php.net/rfc/true-type https://wiki.php.net/rfc/dnf_types

Like before, there are 2 stages: one is detecting the general type hint structure, the second is extracting exact tokens. Multiline types are still not supported, which might be desired with introduction of more complex types. First stage regex is identical in different parts of code:

• closure return
• arrow return
• constructor property promotion
• function/method return type
• typed properties
• typed vardic
• typed parameter

[KapitanOczywisty]

@roblourens It took me a bit longer to get around than I've estimated, but PRs are now ready. Can you take a look at the new PRs? I suspect it's too late to make into February update, or is it?

[roblourens]

Thanks for doing this- yeah I can start pulling code from this repo for the March release.

[KapitanOczywisty]

@roblourens I'd like to merge PRs before March release. If you don't see anything wrong, I'll merge them, and update VSCode grammar.

[roblourens]

Looks fine to me. I was a bit preoccupied during March but assigned https://github.com/microsoft/vscode/issues/162707 to the April milestone