0.pre7.18:

0.pre7.18:
	miscellaneous post-IR1-interpreter cleanup..
	..put all of eval.lisp into the SB-BYTECODE package
	..made SB-BYTECODE package use SB-EXT, as other packages do
	..deleted INTERPRETED-FUNCTION stuff
	..renamed INTERNAL-EVAL (external) to %EVAL (internal)
	..moved eval.lisp after globaldb.lisp in
		stems-and-flags.lisp-expr, so that it can use the
		compiler macro form of INFO instead of full call
	..moved FIND-IF-IN-CLOSURE from SB!SYS (which is supposed to
		be system-dependent stuff) into SB!KERNEL; and then
		made it a private function, since it's only used in
		one place anyway