Revert "[DWARFv5] Emit file 0 to the line table."
Caused an asan failure.

This reverts commit d54883f081186cdcce74e6f98cfc0438579ec019.
aka r326758

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@326762 91177308-0d34-0410-b5e6-96231b3b80d8
20 files changed