GreatSyntacticShift: 'namespace' -> 'package'

idea/testData/checker/Abstract.jet

@@ -1,4 +1,4 @@
-namespace abstract
+package abstract
 
 class MyClass() {
     //properties
@@ -118,7 +118,7 @@ enum class MyEnum() {
 
 abstract enum class MyAbstractEnum() {}
 
-namespace MyNamespace {
+package MyNamespace {
     //properties
     val <error>a</error>: Int
     val a1: Int = 1