Migrated test block 218 to Dart 2.0.

tests/lib/mirrors/class_mirror_location_test.dart

-// Copyright (c) 2015, 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.
-library test.class_location;
-
-@MirrorsUsed(targets: "test.class_location")
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-part 'class_mirror_location_other.dart';
-
-class ClassInMainFile {}
-  class SpaceIndentedInMainFile {}
-        class TabIndentedInMainFile {}
-
-abstract class AbstractClass {}
-typedef bool Predicate(num n);
-
-class M {}
-class S {}
-class MA extends S with M {}
-class MA2 = S with M;
-
-const metadata = 'metadata';
-
-@metadata
-class WithMetadata {}
-
-enum Enum { RED, GREEN, BLUE }
-
-@metadata
-enum AnnotatedEnum { SALT, PEPPER }
-
-// We only check for a suffix of the uri because the test might be run from
-// any number of absolute paths.
-expectLocation(
-    DeclarationMirror mirror, String uriSuffix, int line, int column) {
-  Uri uri = mirror.location.sourceUri;
-  Expect.isTrue(
-      uri.toString().endsWith(uriSuffix), "Expected suffix $uriSuffix in $uri");
-  Expect.equals(line, mirror.location.line, "line");
-  Expect.equals(column, mirror.location.column, "column");
-}
-
-main() {
-  String mainSuffix = 'class_mirror_location_test.dart';
-  String otherSuffix = 'class_mirror_location_other.dart';
-
-  // This file.
-  expectLocation(reflectClass(ClassInMainFile), mainSuffix, 12, 1);
-  expectLocation(reflectClass(SpaceIndentedInMainFile), mainSuffix, 13, 3);
-  expectLocation(reflectClass(TabIndentedInMainFile), mainSuffix, 14, 2);
-  expectLocation(reflectClass(AbstractClass), mainSuffix, 16, 1);
-  expectLocation(reflectType(Predicate), mainSuffix, 17, 1);
-  expectLocation(reflectClass(MA), mainSuffix, 21, 1);
-  expectLocation(reflectClass(MA2), mainSuffix, 22, 1);
-  expectLocation(reflectClass(WithMetadata), mainSuffix, 26, 1);
-  expectLocation(reflectClass(Enum), mainSuffix, 29, 1);
-  expectLocation(reflectClass(AnnotatedEnum), mainSuffix, 31, 1);
-
-  // Another part.
-  expectLocation(reflectClass(ClassInOtherFile), otherSuffix, 7, 1);
-  expectLocation(reflectClass(SpaceIndentedInOtherFile), otherSuffix, 9, 3);
-  expectLocation(reflectClass(TabIndentedInOtherFile), otherSuffix, 11, 2);
-
-  // Synthetic classes.
-  Expect.isNull(reflectClass(MA).superclass.location);
-  Expect.isNull((reflect(main) as ClosureMirror).type.location);
-}