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

[Oleksandr T. via cfe-commits]

a-tarasyuk wrote:

> Ohh, you beat me by a minute. 😆 I suppose https://github.com/llvm/llvm-project/pull/144069 could be closed then.

You can copy the tests/changes from this PR into yours — I'll close this one.

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