dart:io | Tiny change to Link.exists().

tests/standalone/io/file_invalid_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.
 
+import "dart:async";
 import "package:expect/expect.dart";
 import "dart:io";
 import "dart:isolate";
 
 void testReadInvalidArgs(arg) {
   var port = new ReceivePort();
   String filename = getFilename("tests/vm/data/fixed_length_file");
   var file = (new File(filename)).openSync();
   try {
     file.readSync(arg);
@@ skipping 118 matching lines @@
 Future futureThrows(Future result) {
   return result.then((value) {
     throw new ExpectException(
         "futureThrows received $value instead of an exception");
     },
     onError: (_) => null
   );
 }
 
 void testFileSystemEntity() {
-  Expect.throws(() => FileSystemEntity.typeSync([1,2,3]));
-  Expect.throws(() =>
-      FileSystemEntity.typeSync(".", followLinks: "why not?"));
-  Expect.throws(() => FileSystemEntity.identicalSync([1,2,3], "."));
-  Expect.throws(() => FileSystemEntity.identicalSync("."));
-  Expect.throws(() => FileSystemEntity.identicalSync(".", 52));
-  Expect.throws(() => FileSystemEntity.isLinkSync(52));
-  Expect.throws(() => FileSystemEntity.isFileSync(52));
-  Expect.throws(() => FileSystemEntity.isDirectorySync(52));
+  Expect.throws(() => ((x) => FileSystemEntity.typeSync(x))([1,2,3]));
+  Expect.throws(() => ((x, y) =>
+      FileSystemEntity.typeSync(x, followLinks: y))(".", "why not?"));
+  Expect.throws(() => ((x, y) =>
+      FileSystemEntity.identicalSync(x, y))([1,2,3], "."));
+  Expect.throws(() => ((x, y) =>
+                       FileSystemEntity.identicalSync(x, y))(".", 52));
+  Expect.throws(() => ((x) => FileSystemEntity.isLinkSync(x))(52));
+  Expect.throws(() => ((x) => FileSystemEntity.isFileSync(x))(52));
+  Expect.throws(() => ((x) => FileSystemEntity.isDirectorySync(x))(52));
 
   ReceivePort keepAlive = new ReceivePort();
-  futureThrows(FileSystemEntity.type([1,2,3]))
-  .then((_) => futureThrows(
-      FileSystemEntity.type(".", followLinks: "why not?")))
-  .then((_) => futureThrows(FileSystemEntity.identical([1,2,3], ".")))
-  .then((_) => Expect.throws(() =>FileSystemEntity.identical(".")))
-  .then((_) => futureThrows(FileSystemEntity.identical(".", 52)))
-  .then((_) => futureThrows(FileSystemEntity.isLink(52)))
-  .then((_) => futureThrows(FileSystemEntity.isFile(52)))
-  .then((_) => futureThrows(FileSystemEntity.isDirectory(52)))
+  futureThrows(((x) => FileSystemEntity.type(x))([1,2,3]))
+  .then((_) => futureThrows(((x, y) =>
+       FileSystemEntity.type(x, followLinks: y))(".", "why not?")))
+  .then((_) => futureThrows(((x, y) =>
+       FileSystemEntity.identical(x, y))([1,2,3], ".")))
+  .then((_) => futureThrows(((x, y) =>
+       FileSystemEntity.identical(x, y))(".", 52)))
+  .then((_) => futureThrows(((x) => FileSystemEntity.isLink(x))(52)))
+  .then((_) => futureThrows(((x) => FileSystemEntity.isFile(x))(52)))
+  .then((_) => futureThrows(((x) => FileSystemEntity.isDirectory(x))(52)))
   .then((_) => keepAlive.close());
 }
 
 String getFilename(String path) {
   return new File(path).existsSync() ? path : 'runtime/$path';
 }
 
 main() {
   testReadInvalidArgs('asdf');
   testReadIntoInvalidArgs(12, 0, 1);
   testReadIntoInvalidArgs(new List(10), '0', 1);
   testReadIntoInvalidArgs(new List(10), 0, '1');
   testWriteByteInvalidArgs('asdf');
   testWriteFromInvalidArgs(12, 0, 1);
   testWriteFromInvalidArgs(new List(10), '0', 1);
   testWriteFromInvalidArgs(new List(10), 0, '1');
   testWriteStringInvalidArgs("Hello, world", 42);
   testFileSystemEntity();
 }