[clang] [clang] Distinguish unresolved templates in UnresolvedLookupExpr (PR #89019)

[via cfe-commits]

https://github.com/Sirraide commented:

I think the general approach of this makes sense. 

Can you add some more tests that involve an expression with this new type as the argument to a function call? You’ve taken care of handling that case from what I’ve seen, but having tests for that would probably be a good idea.

https://github.com/llvm/llvm-project/pull/89019