1 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/quantified-constraints/T15625.hs b/testsuite/tests/quantified-constraints/T15625.hs
new file mode 100644
index 0000000000..8fe092da98
--- /dev/null
+++ b/testsuite/tests/quantified-constraints/T15625.hs
@@ -0,0 +1,16 @@
+{-# Language GADTs, MultiParamTypeClasses, QuantifiedConstraints #-}
+
+module T15625 where
+
+import Data.Coerce
+
+class a ~ b => Equal a b
+
+test1 :: (forall b. a ~ b) => a
+test1 = False
+
+test2 :: (forall b. Equal a b) => a
+test2 = False
+
+test3 :: (forall b. Coercible a b) => a
+test3 = coerce False