Expand description
Guest POSIX path helpers.
WASIX implements a system layer, so guest paths must behave identically to
POSIX paths even when the runtime host is not POSIX. A different textual
form of the same path can still be observable to compat tests, so guest path
operations should preserve slash-separated string semantics instead of using
host-native Path component rules. Host-native Path remains the filesystem
trait boundary type; these types are for guest-visible path math on our side
of that boundary.