173   llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem> OverlayFileSystem(  in TEST()  local
174       new llvm::vfs::OverlayFileSystem(llvm::vfs::getRealFileSystem()));  in TEST()
177   OverlayFileSystem->pushOverlay(InMemoryFileSystem);  in TEST()
179       new FileManager(FileSystemOptions(), OverlayFileSystem));  in TEST()
199   llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem> OverlayFileSystem(  in TEST()  local
200       new llvm::vfs::OverlayFileSystem(llvm::vfs::getRealFileSystem()));  in TEST()
203   OverlayFileSystem->pushOverlay(InMemoryFileSystem);  in TEST()
205       new FileManager(FileSystemOptions(), OverlayFileSystem));  in TEST()
487   llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem> OverlayFileSystem(  in TEST()  local
488       new llvm::vfs::OverlayFileSystem(llvm::vfs::getRealFileSystem()));  in TEST()
491   OverlayFileSystem->pushOverlay(InMemoryFileSystem);  in TEST()
497                  std::make_shared<PCHContainerOperations>(), OverlayFileSystem);  in TEST()