GreatSyntacticShift: Syntax for function types, function literals, when and tuples

Bug:
fun loop(var times : Int) {
   while(times > 0) {
        val u : (value : Int) -> Unit = { // This arrow is confusing the lookahead
            System.out?.println(it)
        }
        u(times--)
   }
}

compiler/testData/diagnostics/tests/AutocastsForStableIdentifiers.jet

@@ -1,6 +1,6 @@
-namespace example;
+package example;
 
-namespace ns {
+package ns {
     val y : Any? = 2
 }