Reorder subr register function arguments to make some room

Reorder subr register function arguments to make some room

	* src/comp.c (Fcomp__register_lambda, Fcomp__register_subr)
	(Fcomp__late_register_subr): Use a rest arg to pass 'doc_idx' and
	'intspec' parameters.
	* lisp/emacs-lisp/comp.el (comp-emit-for-top-level)
	(comp-emit-lambda-for-top-level): Update.