[clang] [clang] Don't add DWARF debug info when assembling .s with clang-cl /Z7 (PR #106686)

[Martin Storsjö via cfe-commits]

mstorsjo wrote:

@MaskRay - IIRC you're on vacation, but in case you're lurking - any objection to merging this to fix the regression (and backporting it)? If not, I'll go ahead and merge it in a day or two. (It probably misses 19.1.0 RC 4, but can go into the later releases at least.) Also even in case we'd like to change exactly how the fix is implemented, it'd be good to get the functional aspect of it in place, to unblock https://github.com/llvm/llvm-project/issues/101710.

https://github.com/llvm/llvm-project/pull/106686