Make strict vars respect ‘package ĵ; *ĵ::bar = [];’

Make strict vars respect ‘package ĵ; *ĵ::bar = [];’

In this particular case, the name of the current package in UTF-8 (it
cannot be expressed in Latin-1) is the same byte sequence as the name
of the package being assigned to in Latin-1.

Some of the logic in stashpv_hvname_match was faulty.  It worked for
a Latin-1 current package assigning to a glob in a UTF-8 package, but
not the other way around.