always use codeview (pdb) when object_format is PE/COFF
Previously, when mixing Zig and C/C++ code for windows-gnu targets, zig
would get codeview format but the C/C++ code would not get any debug
info. Now, C/C++ code properly emits debug info in codeview format and
everything just works.
24cbf1c706Andrew Kelley committed on 12/8/2020, 8:31:39 PMparenta482b82