+
+(with-test (:name :opt+rest+key-canonicalization)
+ (let ((type '(function (&optional t &rest t &key (:x t) (:y t)) *)))
+ (assert (equal type (sb-kernel:type-specifier (sb-kernel:specifier-type type))))))
+
+(with-test (:name :bug-369)
+ (let ((types (mapcar #'sb-c::values-specifier-type
+ '((values (vector package) &optional)
+ (values (vector package) &rest t)
+ (values (vector hash-table) &rest t)
+ (values (vector hash-table) &optional)
+ (values t &optional)
+ (values t &rest t)
+ (values nil &optional)
+ (values nil &rest t)
+ (values sequence &optional)
+ (values sequence &rest t)
+ (values list &optional)
+ (values list &rest t)))))
+ (dolist (x types)
+ (dolist (y types)
+ (let ((i (sb-c::values-type-intersection x y)))
+ (assert (sb-c::type= i (sb-c::values-type-intersection i x)))
+ (assert (sb-c::type= i (sb-c::values-type-intersection i y))))))))
+
+(with-test (:name :bug-485972)
+ (assert (equal (multiple-value-list (subtypep 'symbol 'keyword)) '(nil t)))
+ (assert (equal (multiple-value-list (subtypep 'keyword 'symbol)) '(t t))))
+
+;; WARNING: this test case would fail by recursing into the stack's guard page.
+(with-test (:name :bug-883498)
+ (sb-kernel:specifier-type
+ `(or (INTEGER -2 -2)
+ (AND (SATISFIES FOO) (RATIONAL -3/2 -3/2)))))
+
+;; The infinite recursion mentioned in the previous test was caused by an
+;; attempt to get the following right.
+(with-test (:name :quirky-integer-rational-union)
+ (assert (subtypep `(or (integer * -1)
+ (and (rational * -1/2) (not integer)))
+ `(rational * -1/2)))
+ (assert (subtypep `(rational * -1/2)
+ `(or (integer * -1)
+ (and (rational * -1/2) (not integer))))))