Include types of ClassTypeAlias into subtyped names.

pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart

Index: pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart
diff --git a/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart b/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart
index 994485d0b8a25fc722d2cf92a2f4f91747b21abc..f829d2452569472bf28aa79fdac07995e91fecf9 100644
--- a/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart
@@ -413,6 +413,24 @@ main() {
 
 @reflectiveTest
 class ComputeSubtypedNamesTest extends ParserTestCase {
+  void test_classDeclaration() {
+    Set<String> names = _computeSubtypedNames('''
+import 'lib.dart';
+class X extends A {}
+class Y extends A with B {}
+class Z implements A, B, C {}
+''');
+    expect(names, unorderedEquals(['A', 'B', 'C']));
+  }
+
+  void test_classTypeAlias() {
+    Set<String> names = _computeSubtypedNames('''
+import 'lib.dart';
+class X = A with B implements C, D, E;
+''');
+    expect(names, unorderedEquals(['A', 'B', 'C', 'D', 'E']));
+  }
+
   void test_prefixed() {
     Set<String> names = _computeSubtypedNames('''
 import 'lib.dart' as p;
@@ -429,16 +447,6 @@ class X extends A<B> {}
     expect(names, unorderedEquals(['A']));
   }
 
-  void test_unprefixed() {
-    Set<String> names = _computeSubtypedNames('''
-import 'lib.dart';
-class X extends A {}
-class Y extends A with B {}
-class Z implements A, B, C {}
-''');
-    expect(names, unorderedEquals(['A', 'B', 'C']));
-  }
-
   Set<String> _computeSubtypedNames(String code) {
     CompilationUnit unit = parseCompilationUnit2(code);
     return computeSubtypedNames(unit);