[clang] [ASTMatchers] Extend hasName matcher when matching templates (PR #100349)

[Nathan James via cfe-commits]

njames93 wrote:

@AaronBallman That's a good point, I didn't account for how defaulted template arguments aren't printed.
Would using `<*>` or a more rustic approach of `<_>` be a good alternative?

https://github.com/llvm/llvm-project/pull/100349