[clang] [llvm] [SpecialCaseList] Use glob by default (PR #74809)

[David Blaikie via cfe-commits]

dwblaikie wrote:

(this sort of example reinforces my concerns expressed earlier that this kind of silent change in behavior is problematic - moreso in the wild, rather than in Google's fairly constrained environment (frequent updates, good test coverage, and good bisection infrastructure, etc - other folks wouldn't have such a good time figuring this out, I suspect))

https://github.com/llvm/llvm-project/pull/74809