- Change "static final" to "static const" in the lib/coreimpl/ directory.

lib/coreimpl/hash_map_set.dart

Index: lib/coreimpl/hash_map_set.dart
===================================================================
--- lib/coreimpl/hash_map_set.dart	(revision 11702)
+++ lib/coreimpl/hash_map_set.dart	(working copy)
@@ -37,10 +37,10 @@
   int _numberOfDeleted;
 
   // The sentinel when a key is deleted from the map.
-  static final _DeletedKeySentinel _DELETED_KEY = const _DeletedKeySentinel();
+  static const _DeletedKeySentinel _DELETED_KEY = const _DeletedKeySentinel();
 
   // The initial capacity of a hash map.
-  static final int _INITIAL_CAPACITY = 8;  // must be power of 2
+  static const int _INITIAL_CAPACITY = 8;  // must be power of 2
 
   HashMapImplementation() {
     _numberOfEntries = 0;