[clang] [Clang] use colon char instead of token name (PR #144068)

[Oleksandr T. via cfe-commits]

a-tarasyuk wrote:

@rkirsling, this test does not verify the fix https://github.com/llvm/llvm-project/pull/144069/files#diff-b87b117875d2e75dc1ef39535756591a688853bbeb7f83e5b4df6bafca111fa0R239-R241

[switch-recovery.cpp](https://github.com/llvm/llvm-project/blob/cf6ae065a042aae6324b28e99628c40bc53be0b7/clang/test/Parser/switch-recovery.cpp#L1) doesn't use FileCheck

https://github.com/llvm/llvm-project/pull/144068