swift

ead742b8 - [CAS] Do not create redirect file system when using clang-include-tree

[CAS] Do not create redirect file system when using clang-include-tree Redirecting file system can canonicalize the file path before forwarding the path to IncludeTreeFileSystem, which is a simplied FS that can only intepret the paths that has been seen by dep-scanner. Since all files that need redirecting already added to underlying FS via DepScan, there is no need for such layer when compiling using clang-include-tree. rdar://119727344