Minor: drop semicolon in package declaration everywhere.

compiler/testData/diagnostics/tests/j+k/kt2890.kt

@@ -1,5 +1,5 @@
 //FILE:_03_collections/CollectionTest.java
-package _03_collections;
+package _03_collections
 
 import java.util.List;
 
@@ -17,4 +17,4 @@ import java.util.ArrayList
 fun test() {
   val <!UNUSED_VARIABLE!>c<!> = CollectionTest()
   CollectionTest.add(ArrayList())
-}
+}