add completions after final keyword

pkg/analysis_server/test/services/completion/completion_test_util.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.services.completion.util;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' as protocol
     show Element, ElementKind;
@@ skipping 3184 matching lines @@
     addTestSource('''
       import "/testB.dart";
       class Y {Y.c(); Y._d(); z() {}}
       main() {var ^}''');
     computeFast();
     return computeFull((bool result) {
       assertNoSuggestions();
     });
   }
 
+  test_VariableDeclarationList_final() {
+    // VariableDeclarationList  VariableDeclarationStatement  Block
+    addTestSource('main() {final ^} class C { }');
+    computeFast();
+    return computeFull((bool result) {
+      assertSuggestImportedClass('Object');
+      assertSuggestLocalClass('C');
+      assertNotSuggested('==');
+    });
+  }
+
   test_VariableDeclarationStatement_RHS() {
     // SimpleIdentifier  VariableDeclaration  VariableDeclarationList
     // VariableDeclarationStatement
     addSource('/testB.dart', '''
       lib B;
       foo() { }
       class _B { }
       class X {X.c(); X._d(); z() {}}''');
     addTestSource('''
       import "/testB.dart";
@@ skipping 39 matching lines @@
       assertNotSuggested('bar2');
       assertNotSuggested('_B');
       assertSuggestLocalClass('Y');
       assertSuggestLocalClass('C');
       assertSuggestLocalVariable('f', null);
       assertNotSuggested('x');
       assertNotSuggested('e');
     });
   }
 }