Handle undefined field/getter access from arguments to const constructors in metadata, and related …

tests/lib/mirrors/metadata_constructor_arguments_test.dart

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Regression test for Issue 13817.
+
+library test.metadata_constructor_arguments;
+
+import 'dart:mirrors';
+import 'package:expect/expect.dart';
+
+class Tag {
+  final name;
+  const Tag({named}) : this.name = named;
+}
+
+@Tag(named: undefined)  /// 01: compile-time error
+class A {}
+
+@Tag(named: 'valid')
+class B {}
+
+@Tag(named: C.STATIC_FIELD)
+class C {
+  static const STATIC_FIELD = 3;
+}
+
+@Tag(named: D.instanceMethod())  /// 02: compile-time error
+class D {
+  instanceMethod() {}
+}
+
+@Tag(named: instanceField)  /// 03: compile-time error
+class E {
+  var instanceField;
+}
+
+@Tag(named: F.nonConstStaticField)  /// 04: compile-time error
+class F {
+  static var nonConstStaticField = 6;
+}
+
+@Tag(named: instanceMethod)  /// 05: compile-time error
+class G {
+  instanceMethod() {}
+}
+
+checkMetadata(DeclarationMirror mirror, List expectedMetadata) {
+  Expect.listEquals(expectedMetadata.map(reflect).toList(), mirror.metadata);
+}
+
+main() {
+  reflectClass(A).metadata;
+  checkMetadata(reflectClass(B), [const Tag(named: 'valid')]);
+  checkMetadata(reflectClass(C), [const Tag(named: C.STATIC_FIELD)]);
+  reflectClass(D).metadata;
+  reflectClass(E).metadata;
+  reflectClass(F).metadata;
+  reflectClass(G).metadata;
+}