Error message wibbles

testsuite/tests/ghc-regress/module/mod55.stderr

-
-mod55.hs:3:25:
-    Can't make a derived instance of `Enum T':
-      `T' has non-nullary constructors
-    In the data type declaration for `T'
+
+mod55.hs:3:26:
+    Can't make a derived instance of `Enum T':
+      `T' is not an enumeration type
+        (an enumeration consists of one or more nullary constructors)
+    In the data type declaration for `T'

testsuite/tests/ghc-regress/module/mod56.stderr

-
-mod56.hs:4:38:
-    Can't make a derived instance of `Ix T':
-      `T' has non-nullary constructors
-        and
-      `T' has more than one constructor
-    In the data type declaration for `T'
+
+mod56.hs:4:39:
+    Can't make a derived instance of `Ix T':
+      `T' is not an enumeration type
+        (an enumeration consists of one or more nullary constructors)
+        and
+      `T' does not have precisely one constructor
+    In the data type declaration for `T'

testsuite/tests/ghc-regress/typecheck/should_fail/tcfail177.stderr

-
-tcfail177.hs:7:12:
-    Couldn't match expected type `Bool' with actual type `Int'
-    In the expression:
-        foo
-          [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]
-    In an equation for `allTests':
-        allTests = foo [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", ....]
+
+tcfail177.hs:10:12:
+    Couldn't match expected type `Bool' with actual type `Int'
+    In the expression:
+      foo
+        [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]
+    In an equation for `allTests':
+        allTests = foo [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", ....]