0.7.12.47:

0.7.12.47:
	Merge patch from Gerd for improvement to SB-PCL:FIND-CLASS.
	... propagate information through the braid
	... now CLASS-DIRECT-SUPERCLASSES and CLASS-DIRECT-SUBCLASSES
		should agree, even on BUILT-IN-CLASS classes
	Merge patch from Gerd for DISASSEMBLE/COMPILED-FUN-OR-LOSE
	... allow generalized function names
	Also audit the rest of the codebase (by grep for "'setf") and
		fix issues revealed
	... DOCUMENTATION LIST 'FUNCTION (and %DEFUN)
	... EVAL (not actually a real bug)
	... COERCE #!+HIGH-SECURITY
	... %DEFKNOWN
	... LOOP (in possibly dead code, though)