UnRevert "Revert the archive part of "Support/PathV2: Add identify_magic.""

This reverts commit dd103021a889a986a181ce36ed7b0e8dc9b645e1.

llvm-svn: 123595
2 files changed
tree: 906f8f89f3006f2c4dceddcc010655fb8d194021
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/