Re: missing GC protection in Fbyte_code

[Richard Stallman]

    Yes, it seems a lot of the GC-stuff there assumes that Fsignal can return.

Originally it could return; the debugger offered that option.
But it wasn't useful and eventually (I think) I saw it required
lots more gcproing, and the feature wasn't worth that.

So please install your patch.  Also, I think that Beqlsign does not
need to do BEFORE_POTENTIAL_GC and AFTER_POTENTIAL_GC.
CHECK_NUMBER_OR_FLOAT_COERCE_MARKER does not quit or cons.