+changes in sbcl-1.0.23 relative to 1.0.22:
+ * enhancement: when disassembling method functions, disassembly
+ for the associated fast function is also produced.
+ * enhancement: system stores DEFTYPE lambda-lists, so DESCRIBE can
+ report them.
+ * optimization: printing with *PRINT-PRETTY* true is now more
+ efficient as long as the object being printed doesn't require
+ special handling by the pretty printer.
+ * bug fix: slot symbol-macros from WITH-SLOTS inside DEFMETHOD bodies
+ now interact correctly with type declarations.
+ * partial bug fix: PCL detects infinite recursion during wrapper
+ validation. (thanks to Attila Lendvai)
+