-;;; the lambda Fun might be converted into a let. This is done after local
-;;; call analysis, and also when a reference is deleted. We only convert to a
-;;; let when the function is a normal local function, has no XEP, and is
-;;; referenced in exactly one local call. Conversion is also inhibited if the
-;;; only reference is in a block about to be deleted. We return true if we
-;;; converted.
-;;;
-;;; These rules may seem unnecessarily restrictive, since there are some
-;;; cases where we could do the return with a jump that don't satisfy these
-;;; requirements. The reason for doing things this way is that it makes the
-;;; concept of a let much more useful at the level of IR1 semantics. The
-;;; :ASSIGNMENT function kind provides another way to optimize calls to
-;;; single-return/multiple call functions.
-;;;
-;;; We don't attempt to convert calls to functions that have an XEP, since
-;;; we might be embarrassed later when we want to convert a newly discovered
-;;; local call. Also, see OK-INITIAL-CONVERT-P.
+;;; the lambda Fun might be converted into a let. This is done after
+;;; local call analysis, and also when a reference is deleted. We only
+;;; convert to a let when the function is a normal local function, has
+;;; no XEP, and is referenced in exactly one local call. Conversion is
+;;; also inhibited if the only reference is in a block about to be
+;;; deleted. We return true if we converted.
+;;;
+;;; These rules may seem unnecessarily restrictive, since there are
+;;; some cases where we could do the return with a jump that don't
+;;; satisfy these requirements. The reason for doing things this way
+;;; is that it makes the concept of a LET much more useful at the
+;;; level of IR1 semantics. The :ASSIGNMENT function kind provides
+;;; another way to optimize calls to single-return/multiple call
+;;; functions.
+;;;
+;;; We don't attempt to convert calls to functions that have an XEP,
+;;; since we might be embarrassed later when we want to convert a
+;;; newly discovered local call. Also, see OK-INITIAL-CONVERT-P.