Fill out the implementation of synthetic getters/setters in the summary linker.

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 5e2bcd6adc92ffcb88ac8fff3ee9a06ca722bbae..dbe650de42c81afc0d0d34b467bcd8526f59ebd2 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
@@ -333,18 +333,6 @@ var b2 = new B<int>();
 
   @override
   @failingTest
-  void test_inferFromRhsOnlyIfItWontConflictWithOverriddenFields() {
-    super.test_inferFromRhsOnlyIfItWontConflictWithOverriddenFields();
-  }
-
-  @override
-  @failingTest
-  void test_inferTypesOnGenericInstantiations_4() {
-    super.test_inferTypesOnGenericInstantiations_4();
-  }
-
-  @override
-  @failingTest
   void test_inferTypesOnGenericInstantiations_5() {
     super.test_inferTypesOnGenericInstantiations_5();
   }