Cause "implement methods" to be sorted before "make abstract"

pkg/analysis_server/lib/src/services/correction/fix.dart

Index: pkg/analysis_server/lib/src/services/correction/fix.dart
diff --git a/pkg/analysis_server/lib/src/services/correction/fix.dart b/pkg/analysis_server/lib/src/services/correction/fix.dart
index dde87a0b7835aed0a25af3f4d9dc66302f51c945..e1f81f641a1f8c561b41587a752098c60d5f3e7e 100644
--- a/pkg/analysis_server/lib/src/services/correction/fix.dart
+++ b/pkg/analysis_server/lib/src/services/correction/fix.dart
@@ -85,7 +85,7 @@ class DartFixKind {
   static const CREATE_METHOD =
       const FixKind('CREATE_METHOD', 50, "Create method '{0}'");
   static const CREATE_MISSING_OVERRIDES = const FixKind(
-      'CREATE_MISSING_OVERRIDES', 50, "Create {0} missing override(s)");
+      'CREATE_MISSING_OVERRIDES', 49, "Create {0} missing override(s)");
   static const CREATE_NO_SUCH_METHOD = const FixKind(
       'CREATE_NO_SUCH_METHOD', 51, "Create 'noSuchMethod' method");
   static const IMPORT_LIBRARY_PREFIX = const FixKind('IMPORT_LIBRARY_PREFIX',