strings which use variants of the ~* directive inside.
* bug fix: SEARCH now applies its TEST predicate to the elements of
the arguments in the correct order. (thanks to Wolfhard Buss)
+ * fixed bug 235b: compiler uses return types of MAPCAR and friends
+ in type inference. (thanks to Robert E. Brown)
* fixed some bugs revealed by Paul Dietz' test suite:
** NIL is now allowed as a structure slot name.
** arbitrary numbers, not just reals, are allowed in certain