overlay.el bug, incompatable overlays-in

[Stephen J. Turnbull]

It's me FKtPp ;) writes:

 > A branch of test shows that GNU's overlays- function can accept any
 > integer as BIG or END parameter -_-

[[ *sigh* I really detest that style of programming.  No wonder the
overlays emulation is deprecated. ]]

 > attachment is a changed overlay.el that with above 3 #'functions emulate
 > the GNU's behavior.

Please submit it to XEmacs Patches as a patch against the Mercurial
repository.  It will get faster review that way, at least from me.
You may also wish to put a copy on the tracker (this kind of thing
will eventually be done automatically but that is not implemented
yet).

I can tell you already that (1) the docstrings *need* to be amended to
describe the DWIM behavior, and (2) I'm almost certainly going to ask
that the normalization of arguments (null BUFFER -> current buffer,
truncating bounds and reordering them) be refactored as a defsubst.

Thanks!