Fix REPL test

Author: odersky

compiler/test-resources/repl/patdef

@@ -5,8 +5,8 @@ scala> val (Const, List(`x`, _, a), b) = (0, List(0, 1337, 1), 2)
 val a: Int = 1
 val b: Int = 2
 scala> val a@b = 0
-val a: Int @unchecked = 0
-val b: Int @unchecked = 0
+val a: Int = 0
+val b: Int = 0
 scala> val Y = 2
 val Y: Int = 2
 scala> val X, Y = 3