Suggest 'var' and 'final' in intializer of 'for'.

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

Index: pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
diff --git a/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart b/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
index 2e7e48b8e0c7df6c3bf1e11955df41ed59d14e5d..f06faec56017adf1a4b707b2214274f3f09cf2e2 100644
--- a/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
+++ b/pkg/analysis_server/test/services/completion/dart/keyword_contributor_test.dart
@@ -670,6 +670,13 @@ class KeywordContributorTest extends DartCompletionContributorTest {
     assertSuggestKeywords(EXPRESSION_START_NO_INSTANCE);
   }
 
+  test_for_initialization_var() async {
+    addTestSource('main() {for (va^)}');
+    await computeSuggestions();
+    assertSuggestKeywords([Keyword.FINAL, Keyword.VAR],
+        relevance: DART_RELEVANCE_HIGH);
+  }
+
   test_function_async() async {
     addTestSource('main()^');
     await computeSuggestions();