Fix 'new KnownClass.unresolvedConstructor()' type computation.

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 99d8ba91a76bdf722880ce9fff7149be3c58189f..fcc12c4f71432a2cea95b9816af262e01fb376d7 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
@@ -692,18 +692,6 @@ class ResynthesizeAstStrongTest extends _ResynthesizeAstTest {
 
   @override
   @failingTest
-  test_const_invokeConstructor_named_unresolved() {
-    super.test_const_invokeConstructor_named_unresolved();
-  }
-
-  @override
-  @failingTest
-  test_const_invokeConstructor_named_unresolved3() {
-    super.test_const_invokeConstructor_named_unresolved3();
-  }
-
-  @override
-  @failingTest
   test_instantiateToBounds_boundRefersToLaterTypeArgument() {
     // TODO(paulberry): this is failing due to dartbug.com/27072.
     super.test_instantiateToBounds_boundRefersToLaterTypeArgument();