0.7.12.7:

0.7.12.7:
	Fix bug 228, by allowing pseudoLAMBDA-expressions to be compiled
		by FUNCTION and COMPILE:
	... define IR1-CONVERT-LAMBDALIKE to massage the pseudolambda
		into a lambda;
	... define SB-INT:NAMED-LAMBDA and SB-KERNEL:LAMBDA-WITH-LEXENV
		macros analogous to CL:LAMBDA;
	... various bits of commentary.
	This change also has the effect of quieting the compiler when
		compiling defmethod forms with arguments naming classes
		and a CALL-NEXT-METHOD in the body.