[clang] [llvm] [mlir] [clang] Use VFS for `-fopenmp-host-ir-file-path` (PR #156727)

[Jan Svoboda via llvm-commits]

================
@@ -0,0 +1,33 @@
+// This test checks that the OpenMP host IR file goes through VFS overlays.
----------------
jansvoboda11 wrote:

@alexey-bataev ping

https://github.com/llvm/llvm-project/pull/156727