0.pre7.20:

0.pre7.20:
	more post-IR1-interpreter cleanup: grepped down and killed
		things matching FOR-INTERPRETER, COMPILE-FOR-EVAL,
		DEBUGGING-INTERPRETER, EVAL-IN-FRAME, and LAMBDA-EVAL
	deleted unused ALIEN:ALIEN-BOOLEAN symbol
	(Now that the IR1 interpreter is gone, and some other code too,
		this version has some 3400 (or 2.5%) fewer lines of
		Lisp source code than sbcl-0.6.13 did.)