Don't instantiate a new InterfaceTypeImpl for a ClassElement without type parameters.

pkg/analyzer/test/generated/strong_mode_test.dart

Index: pkg/analyzer/test/generated/strong_mode_test.dart
diff --git a/pkg/analyzer/test/generated/strong_mode_test.dart b/pkg/analyzer/test/generated/strong_mode_test.dart
index 2341f0a0f45187013a92765705e26fa4061fd2b7..ac5eb8530ae9ebaab194ed2c65216c9bd41477a2 100644
--- a/pkg/analyzer/test/generated/strong_mode_test.dart
+++ b/pkg/analyzer/test/generated/strong_mode_test.dart
@@ -2426,30 +2426,4 @@ class StrongModeTypePropagationTest_Driver
     extends StrongModeTypePropagationTest {
   @override
   bool get enableNewAnalysisDriver => true;
-
-  @failingTest
-  @override
-  test_localVariableInference_transitive_field_inferred_lexical() {
-    return super
-        .test_localVariableInference_transitive_field_inferred_lexical();
-  }
-
-  @failingTest
-  @override
-  test_localVariableInference_transitive_field_inferred_reversed() {
-    return super
-        .test_localVariableInference_transitive_field_inferred_reversed();
-  }
-
-  @failingTest
-  @override
-  test_localVariableInference_transitive_field_lexical() {
-    return super.test_localVariableInference_transitive_field_lexical();
-  }
-
-  @failingTest
-  @override
-  test_localVariableInference_transitive_field_reversed() {
-    return super.test_localVariableInference_transitive_field_reversed();
-  }
 }