Add test

Author: odersky

tests/neg/case-semi.scala

@@ -0,0 +1,9 @@
+object Test with
+  type X = Int
+  val x: X = 1
+
+  type T2 = X match { case Int => String case String => Int }
+  x match { case 1 => 3; case 2 => 4 }
+  x match { case 1 => 3 case 2 => 4 }
+
+  type T1 = X match { case Int => String; case String => Int } // error // error