Recommit "PR44685: DebugInfo: Handle address-use-invalid type units referencing non-type units"

Originally committed as be3ef93b.
Reverted by b4bffdba due to bot
failures:
http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-expensive/17380/testReport/junit/LLVM/DebugInfo_X86/addr_tu_to_non_tu_ll/
http://45.33.8.238/win/22216/step_11.txt

MacOS failure due to testing Split DWARF which isn't compatible with
MachO.
Windows failure due to testing type units which aren't enabled on
Windows.

Fix both of these by applying an explicit x86 linux triple to the test.