[clang] [llvm] [CodeView] Flatten cmd args in frontend for LF_BUILDINFO (PR #106369)

[Alexandre Ganea via cfe-commits]

aganea wrote:

> I always set Argv0 and Commandline, even if they are just an empty string. Some tools had issues if those were not set. We already did use the empty string for BuildInfoRecord::TypeServerPDB, so now its also more consistent.

Ah yes, that's good. Looks good, thanks again!


https://github.com/llvm/llvm-project/pull/106369