0.6.12.44:

0.6.12.44:
	merged Dave MacDonald patch (sbcl-devel 2001-07-04): cleanup
		of COMPILE-FILE cruft left over from transition to
		compiling only one file at a time; plus a few
		WHN modifications..
	..INDEX isn't actually ignored in FIND-SOURCE-ROOT
	..(IF (PATHNAMEP X) X (PATHNAME X)) => (PATHNAME X)
	..more-explicit names in general
	..expanded remaining FIND-FILE-INFO call into something which
		still works now that DEFUN FIND-FILE-INFO is gone
	Also, while I'm at it, SOURCE-INFO-FILE-INFO is a better
		name than SOURCE-INFO-FILE.