current filename/directory in Info

[Karl Berry]

Related to all this --all stuff.  How about a command to report the
current filename being displayed?  Or is there one already?  I couldn't
find it.

E.g., M-x display-file, to just output the full pathname (like
/usr/local/gnu/share/info/emacs.info.gz) in the minibuffer.  For extra
credit, could also show the total number of lines or characters in the
file (after uncompression).

Maybe could bound to = by default since it is sort of like = in ed, etc.

Wdyt?

Thanks,
Karl