Add closure_test

tests/compiler/dart2js/closure/closure_test.dart

+// Copyright (c) 2017, 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.
+
+import 'dart:io';
+import 'package:async_helper/async_helper.dart';
+import 'package:compiler/src/closure.dart';
+import 'package:compiler/src/compiler.dart';
+import 'package:compiler/src/diagnostics/diagnostic_listener.dart';
+import 'package:compiler/src/elements/elements.dart';
+import 'package:compiler/src/tree/nodes.dart';
+import '../equivalence/id_equivalence.dart';
+import '../equivalence/id_equivalence_helper.dart';
+
+main() {
+  asyncTest(() async {
+    Directory dataDir = new Directory.fromUri(Platform.script.resolve('data'));
+    await for (FileSystemEntity entity in dataDir.list()) {
+      print('Checking ${entity.uri}');
+      String annotatedCode = await new File.fromUri(entity.uri).readAsString();
+      await checkCode(annotatedCode, checkClosureData);
+    }
+  });
+}
+
+void checkClosureData(
+    Compiler compiler, Map<Id, String> expectedMap, MemberElement member) {
+  new ClosureChecker(compiler.reporter, expectedMap, member.resolvedAst,
+          compiler.closureDataLookup as ClosureDataLookup<Node>)
+      .check();
+}
+
+class ClosureChecker extends AbstractResolvedAstChecker {
+  final ClosureDataLookup<Node> closureDataLookup;
+  final ClosureRepresentationInfo info;
+
+  ClosureChecker(DiagnosticReporter reporter, Map<Id, String> expectedMap,
+      ResolvedAst resolvedAst, this.closureDataLookup)
+      : this.info =
+            closureDataLookup.getClosureRepresentationInfo(resolvedAst.element),
+        super(reporter, expectedMap, resolvedAst);
+
+  @override
+  String computeNodeValue(Node node, [AstElement element]) {
+    if (element != null && element.isLocal) {
+      LocalElement local = element;
+      StringBuffer sb = new StringBuffer();
+      if (info.variableIsUsedInTryOrSync(local)) {
+        sb.write('inTry');
+      }
+      return sb.toString();
+    }
+    return null;
+  }
+
+  @override
+  String computeElementValue(AstElement element) {
+    return null;
+  }
+}