[clang] [Clang] Fixed a crash when parsing #embed parameters with unmatched closing brackets (PR #152877)

[Balázs Benics via cfe-commits]

steakhal wrote:

> @steakhal Thanks for pointing that out. I intended this note to go under `Bug Fixes in This Version` for Clang. I can follow up with a small separate PR if that’s preferred. Is it acceptable?

No need. Check out #174399 instead.

https://github.com/llvm/llvm-project/pull/152877