+ * optimization: complicated TYPEP tests are less opaque to the type
+ propagation pass. (lp#1229340)
+ * optimization: [N]BUTLAST perform a single pass over the list. (lp#1245697)
+ * optimization: EQUALP on structures with raw slots (double-float/complex)
+ no longer conses and is faster.
+ * optimization: RESTART-CASE expands to more compact code.
+ Thanks to Jan Moringen. (lp#1249055)