+\f
+;;; FUNCALLABLE-INSTANCE is a subtype of function.
+(assert-t-t (subtypep '(and pathname function) nil))
+(assert-t-t (subtypep '(and pathname sb-kernel:funcallable-instance) nil))
+(assert (not (subtypep '(and stream function) nil)))
+(assert (not (subtypep '(and stream sb-kernel:funcallable-instance) nil)))
+(assert (not (subtypep '(and function standard-object) nil)))
+(assert (not (subtypep '(and sb-kernel:funcallable-instance standard-object) nil)))
+
+;;; also, intersections of classes with INSTANCE should not be too
+;;; general
+(assert (not (typep #'print-object '(and standard-object sb-kernel:instance))))
+(assert (not (subtypep 'standard-object '(and standard-object sb-kernel:instance))))
+\f
+(assert-t-t
+ (subtypep '(or simple-array simple-string) '(or simple-string simple-array)))
+(assert-t-t
+ (subtypep '(or simple-string simple-array) '(or simple-array simple-string)))
+(assert-t-t
+ (subtypep '(or fixnum simple-string end-of-file parse-error fixnum vector)
+ '(or fixnum vector end-of-file parse-error fixnum simple-string)))
+
+#+sb-eval
+(assert-t-t
+ (subtypep '(and function (not compiled-function)
+ (not sb-eval:interpreted-function))
+ nil))