0.7.11.7:

0.7.11.7:
	Fix for averrance failure due to DEBUG-RETURN interfering with
		type system (explanation APD sbcl-devel 2003-01-10)
	... disable insertion of CATCH if it was disabled in an outer
		LAMBDA;
	... enable insertion of CATCH when compiling top-level forms, so
		that the evaluator continues to have DEBUG-RETURN
		goodness.