[clang] Switch builtin strings to use string tables (PR #118734)

[Chandler Carruth via cfe-commits]

chandlerc wrote:

> Could the version of VC that we are using possibly have the issue with long strings that you mention? Is there a simple way to check that?

It's a compile time error, so no, that'd be really clear cut.

The only other thing I've seen is running out of heap, but that seems likely exclusively a compiler explorer thing.

https://github.com/llvm/llvm-project/pull/118734