Serialize / resynthesize 'isAsynchronous' and 'isGenerator' flags.

pkg/analyzer/test/src/summary/resynthesize_ast_test.dart

Index: pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
index 21be2a961e7aed7fb65bbe7fa1581fd442794e0a..420b70f65f62bc943d2e22e8970e48ce56e4cd1b 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
@@ -154,18 +154,6 @@ class AstInferredTypeTest extends AbstractResynthesizeTest
 
   @override
   @failingTest
-  void test_downwardsInferenceAsyncAwait() {
-    super.test_downwardsInferenceAsyncAwait();
-  }
-
-  @override
-  @failingTest
-  void test_downwardsInferenceForEach() {
-    super.test_downwardsInferenceForEach();
-  }
-
-  @override
-  @failingTest
   void test_downwardsInferenceOnFunctionOfTUsingTheT() {
     super.test_downwardsInferenceOnFunctionOfTUsingTheT();
   }
@@ -178,12 +166,6 @@ class AstInferredTypeTest extends AbstractResynthesizeTest
 
   @override
   @failingTest
-  void test_downwardsInferenceYieldYieldStar() {
-    super.test_downwardsInferenceYieldYieldStar();
-  }
-
-  @override
-  @failingTest
   void test_genericMethods_inferJSBuiltin() {
     super.test_genericMethods_inferJSBuiltin();
   }