[clang] [clang][Sema] Check swift_attr argument count in type contexts (PR #228873)

[Ambrose Leeb via cfe-commits]

Sirraide wrote:

> Does that mean this PR is a duplicate? Should I close it?

I think we can close this, yeah; the tests for this can just be added as part of the other pr imo, because I believe it should end up fix the issue this pr was trying to address

https://github.com/llvm/llvm-project/pull/228873