add completions after final keyword

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

Index: pkg/analysis_server/test/services/completion/optype_test.dart
diff --git a/pkg/analysis_server/test/services/completion/optype_test.dart b/pkg/analysis_server/test/services/completion/optype_test.dart
index 430dd999c56f5d561646a87cfe3f20a5c52a1793..067c14ecf913948137ca411cbd18df7bbc790381 100644
--- a/pkg/analysis_server/test/services/completion/optype_test.dart
+++ b/pkg/analysis_server/test/services/completion/optype_test.dart
@@ -769,6 +769,12 @@ class OpTypeTest {
     assertOpType();
   }
 
+  test_VariableDeclarationList_final() {
+    // VariableDeclarationList  VariableDeclarationStatement  Block
+    addTestSource('main() {final ^}');
+    assertOpType(typeNames: true);
+  }
+
   test_VariableDeclarationStatement_afterSemicolon() {
     // VariableDeclarationStatement  Block  BlockFunctionBody
     addTestSource('class A {var a; x() {var b;^}}');