LSP: Allow for an LSP extension match on any suffix, not just filename and ext

[nathansbradshaw]

Angular shares file extensions with html and ts. It is conventional for an angular file to follow the format *.component.html or *.component.ts. This PR allows LSP to add an optional Language detection field called path_regex that can be used to sort out duplicate Languages, such as in the case of angular files.

Release Notes:

• Added Path_Regex option for LSP configs

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	Warnings
:warning:	This PR is missing release notes. Please add a "Release Notes" section that describes the change: Release Notes: - (Added|Fixed|Improved) ... ([#<public_issue_number_if_exists>](https://github.com/zed-industries/zed/issues/<public_issue_number_if_exists>)). If your change is not user-facing, you can use "N/A" for the entry: Release Notes: - N/A

Generated by :no_entry_sign: dangerJS against 7d78e3bd526c89d7ce0b18d1a56fbfecf5223352

[maxbrunsfeld]

I agree, it seems like a path_suffixes need to not just match against the extension and the filename, but rather split the filename on a ., and check if any suffix of that split list matches the entry.

[ConradIrwin]

Sorry for the slow response here.

I am going to close this for now. I think we need to consolidate our file ending handling so we can fix this in just one place.