[Dexter] Continue sprinking no-location fixes

Example failure:

http://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/3255/testReport/junit/debuginfo-tests/dexter-tests/asan_c/

The tests themselves seem to be working, it's just unexplored paths within
dexter that are flaking out.

GitOrigin-RevId: be79db93fbd13877ccefb9a7edbabd0d490d86c4
1 file changed