refactor(codegen): generate most functions on LanguageKind
with a macro
#3380
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Summary
This refactors how most of the functions on
LanguageKind
are defined to be generated from a macro. The purpose is to make it less tedious, and reduce the potential for merge conflicts when implementing new languages. Since we'll likely be implementing a few new languages for HTML-ish language support (#1726), I figured this would be useful. Ideally, simply adding an entry toenum LanguageKind
should be enough, but doing that requires a proc macro.Test Plan
Everything compiles, and inlining the macros with rust analyzer produces the same output as before the refactor