Remove toplevel inference restriction hints, and restore as much

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 d1bbb542d084ecbe48ca1a850aed8f7cbee9986e..b1cdf8edbfb841c6ff57f09321400eb3772576ab 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
@@ -64,18 +64,6 @@ class ResynthesizeAstStrongTest extends _ResynthesizeAstTest {
 
   @override
   @failingTest
-  test_const_invokeConstructor_generic_noTypeArguments() async {
-    await super.test_const_invokeConstructor_generic_noTypeArguments();
-  }
-
-  @override
-  @failingTest
-  test_instantiateToBounds_boundRefersToItself() async {
-    await super.test_instantiateToBounds_boundRefersToItself();
-  }
-
-  @override
-  @failingTest
   test_syntheticFunctionType_genericClosure() async {
     await super.test_syntheticFunctionType_genericClosure();
   }