Update examples

testsuite/pdynload/should_fail0/api/API.hs

@@ -0,0 +1,13 @@
+{-# OPTIONS -fglasgow-exts #-}
+-- ^ needed to derive Typeable
+
+module API where
+
+import Data.Dynamic
+
+data Interface = Interface { field :: String }
+   deriving (Show)
+
+rsrc :: Interface
+rsrc = Interface { field = "default value" }
+