bytecomp-simplify v.5 -- simplification warns when byte compiling

[Kevin Ryde]

This is where I got to for what I mentioned on emacs-devel about the
byte compiler perhaps warning of possible simplifications in the code.
It's a bit inconvenient having to work in a "-l bytecomp-simplify.el"
when batch byte compiling, but if you only do it during development it's
not too bad.

I suppose elint.el could also do this sort of thing, but the byte
compiler seems a bit easier and has a bit better information about
what's actually code etc.

I suppose also each source simplification is an opportunity for a
byte-optimize too.  The downgrade of re-search-forward to fixed string
search-forward would probably be safe, though maybe dropping a function
call like (point-max) from such a form could miss defadvice or other
redefinition if someone was doing something very hairy.

bytecomp-simplify.el
Description: application/emacs-lisp

bytecomp-simplify.el.asc
Description: Text document