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/Abstract.jet

@@ -1,6 +1,6 @@
 // +JDK
 
-namespace abstract
+package abstract
 
 class MyClass() {
     //properties
@@ -180,7 +180,7 @@ enum class MyEnum() {
 
 abstract enum class MyAbstractEnum() {}
 
-namespace MyNamespace {
+package MyNamespace {
     //properties
     val <!MUST_BE_INITIALIZED!>a<!>: Int
     val a1: Int = 1