(shadow-parse-fullname): Renamed from shadow-parse-fullpath.

(shadow-parse-fullname): Renamed from shadow-parse-fullpath.
(shadow-parse-name): Renamed from shadow-parse-path.
(shadow-make-fullname): Renamed from shadow-make-fullpath.
(shadow-replace-name-component): Was shadow-replace-path-component.
Callers of the above functions changed.

(shadow-expand-cluster-in-file-name): Doc fix.
(shadow-same-site, shadow-file-match): Doc fix.
(shadow-define-literal-group): Doc fix.