[clang] clang: Relax LangOpts checks when lexing quoted numbers during preprocessing (PR #95798)

[Nishith Kumar M Shah via cfe-commits]

nishithshah2211 wrote:

@jansvoboda11 - I put up this PR to get your thoughts on addressing https://github.com/llvm/llvm-project/issues/88896, since the previous commit was reverted. Is this more along the lines of what you were thinking?

I will push more changes to include a test for the Lexer too.

https://github.com/llvm/llvm-project/pull/95798