DebugInfo: Use debug_line.dwo for debug_macro.dwo

This is an alternative proposal to D81476 (and D82084) - the details were sufficiently confusing to me it seemed easier to write some code and see how it looks.

Reviewers: SouraVX

Differential Revision: https://reviews.llvm.org/D84278

GitOrigin-RevId: 5c2451785dfe6d8a4448690cd1f1c247036bfca6
2 files changed