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

[via cfe-commits]

dyung wrote:

> > I've pulled out the entire tools\clang\lib\Basic directory from a failing build, what would you like me to do with it?
> 
> Can you put it in a zip somewhere? It would be interesting to check if there's some major difference compared to using a different MSVC version.

I've put it up on Dropbox, let me know if you cannot access the zipfile: https://www.dropbox.com/scl/fi/pbc02zyba2wtcwhun27fz/Basic.zip?rlkey=v4vqd6bqoewubmkzca8508wxo&dl=0

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