Stack overflow while building goto cache when encountering self-referencing link with empty cFileName

[bytes-and-bits]

I have access to several Win7 machines which have security software that creates a link with an empty name that points to itself - probably some kind of attempt to foil directory-crawling malware. When running the latest release of Winfile I get a stack overflow when it attempts to traverse the link while building the goto cache. Windows Explorer completely ignores the link so I don't see it there, while Winfile will show the link with a blank name, and it lets me traverse it down multiple levels. Winfile should at least ignore those links when building the goto cache, if not ignore them globally.

[bytes-and-bits]

Fix verified in the 1901 release.