`getCurrentDirectory` directory doesn't return a posix separated normalized path. While `rootDir` and `rootDirs` should return posix separated paths, it's best to not assume as other paths within the compiler options can be returned not posix separated such as `basePath`
See: https://github.com/Microsoft/TypeScript/blob/master/src/compiler/sys.ts#L635
This partially fixes#29140, however there needs to be a change in the CLI as well to handle this, as at the moment we are leaking devkit paths which is not correct.
Fixes#29140
PR Close#29151
ca20f571b8