Follow up on 20074, which changed the `Loader_Pass` class to compare paths against (other) paths with hard-coded forward slashes.

This silently broke the Dependency injection layer for anyone compiling on Windows, i.e. the DI container scripts would run without errors, but once the DI container is attempted to be used, everything breaks.

This commit should fix that in a similar way as a previous similar issue was fixed in another part of the DI container setup (PR 16364).

… with a false check.