+;;; Return a list representing the lambda-list for DEBUG-FUNCTION. The
+;;; list has the following structure:
+;;; (required-var1 required-var2
+;;; ...
+;;; (:optional var3 suppliedp-var4)
+;;; (:optional var5)
+;;; ...
+;;; (:rest var6) (:rest var7)
+;;; ...
+;;; (:keyword keyword-symbol var8 suppliedp-var9)
+;;; (:keyword keyword-symbol var10)
+;;; ...
+;;; )
+;;; Each VARi is a DEBUG-VAR; however it may be the symbol :DELETED if
+;;; it is unreferenced in DEBUG-FUNCTION. This signals a
+;;; LAMBDA-LIST-UNAVAILABLE condition when there is no argument list
+;;; information.