[PATCH] D52549: [VFS] Add a VFS wrapper which avoids opening nonexistent files by reading dirs.

[Sam McCall via Phabricator via cfe-commits]

sammccall planned changes to this revision.
sammccall marked an inline comment as done.
sammccall added a comment.

Hmm, after fixing the stat issue, this still doesn't seem to make a big difference on real FSes.
Putting this on hold for now.
We do have VFSes where I think this might be a win, but I'll let them try it out out-of-tree.


Repository:
  rC Clang

https://reviews.llvm.org/D52549