webdav: make the memFS (not the memFSNode) the canonical source of a
file name.

This fixes inconsistent stat names after a file is renamed.

Change-Id: Ie90f8abaa31d46a87834266053b61d7770f854e2
Reviewed-on: https://go-review.googlesource.com/3051
Reviewed-by: Nick Cooper <nmvc@google.com>
Reviewed-by: Dave Cheney <dave@cheney.net>
2 files changed