[PATCH] D54245: [VFS] Implement `RedirectingFileSystem::getRealPath`.

[Volodymyr Sapsai via Phabricator via cfe-commits]

vsapsai added a comment.

In https://reviews.llvm.org/D54245#1292008, @bruno wrote:

> Hi Volodymyr. Does this behavior changed after your VFS fallback change?


https://reviews.llvm.org/D50539 didn't change `RedirectingFileSystem` behavior regarding real paths. But for `-ivfsoverlay` it started using nested `RedirectingFileSystem` instead of `OverlayFileSystem`. And `OverlayFileSystem` implements `getRealPath` <https://clang.llvm.org/doxygen/VirtualFileSystem_8cpp_source.html#l00390>.


https://reviews.llvm.org/D54245