Remove DirectoryException and LinkException from dart:io and use FileException instaed.

tests/standalone/io/file_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.
 //
 // Dart test program for testing file I/O.
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:collection';
 import 'dart:io';
@@ skipping 689 matching lines @@
 
   // Tests exception handling after file was closed.
   static void testCloseException() {
     bool exceptionCaught = false;
     bool wrongExceptionCaught = false;
     File input = new File(tempDirectory.path + "/out_close_exception");
     RandomAccessFile openedFile = input.openSync(mode: WRITE);
     openedFile.closeSync();
     try {
       openedFile.readByteSync();
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     exceptionCaught = false;
     try {
       openedFile.writeByteSync(1);
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     exceptionCaught = false;
     try {
       openedFile.writeStringSync("Test");
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     exceptionCaught = false;
     try {
       List<int> buffer = new List<int>(100);
       openedFile.readIntoSync(buffer, 0, 10);
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     exceptionCaught = false;
     try {
       List<int> buffer = new List<int>(100);
       openedFile.writeFromSync(buffer, 0, 10);
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     exceptionCaught = false;
     try {
       openedFile.positionSync();
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     exceptionCaught = false;
     try {
       openedFile.lengthSync();
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     exceptionCaught = false;
     try {
       openedFile.flushSync();
-    } on FileException catch (ex) {
+    } on FileSystemException catch (ex) {
       exceptionCaught = true;
     } on Exception catch (ex) {
       wrongExceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
     Expect.equals(true, !wrongExceptionCaught);
     input.deleteSync();
   }
 
   // Tests stream exception handling after file was closed.
@@ skipping 116 matching lines @@
     future.then((r) => Expect.fail('Directory opened as file'))
           .catchError((e) {});
   }
 
   static void testOpenDirectoryAsFileSync() {
     var f = new File('.');
     try {
       f.openSync();
       Expect.fail("Expected exception opening directory as file");
     } catch (e) {
-      Expect.isTrue(e is FileException);
+      Expect.isTrue(e is FileSystemException);
     }
   }
 
   static void testReadAsBytes() {
     asyncTestStarted();
     var name = getFilename("tests/vm/data/fixed_length_file");
     var f = new File(name);
     f.readAsBytes().then((bytes) {
       Expect.isTrue(new String.fromCharCodes(bytes).endsWith("42 bytes."));
       Expect.equals(42, bytes.length);
@@ skipping 68 matching lines @@
     var text = new File(name).readAsStringSync();
     Expect.isTrue(text.endsWith("42 bytes."));
     Expect.equals(42, text.length);
     name = getDataFilename("tests/standalone/io/read_as_text.dat");
     text = new File(name).readAsStringSync();
     Expect.equals(6, text.length);
     var expected = [955, 120, 46, 32, 120, 10];
     Expect.listEquals(expected, text.codeUnits);
     // First character is not ASCII. The default ASCII decoder will throw.
     Expect.throws(() => new File(name).readAsStringSync(encoding: ASCII),
-                  (e) => e is FileException);
+                  (e) => e is FileSystemException);
     // We can use an ASCII decoder that inserts the replacement character.
     var lenientAscii = const AsciiCodec(allowInvalid: true);
     text = new File(name).readAsStringSync(encoding: lenientAscii);
     // Default replacement character is the Unicode replacement character.
     expected = [UNICODE_REPLACEMENT_CHARACTER_RUNE,
                 UNICODE_REPLACEMENT_CHARACTER_RUNE,
                 120, 46, 32, 120, 10];
     Expect.listEquals(expected, text.codeUnits);
     text = new File(name).readAsStringSync(encoding: LATIN1);
     expected = [206, 187, 120, 46, 32, 120, 10];
@@ skipping 29 matching lines @@
     Expect.equals(42, line.length);
     name = getDataFilename("tests/standalone/io/readline_test1.dat");
     lines = new File(name).readAsLinesSync();
     Expect.equals(10, lines.length);
   }
 
 
   static void testReadAsErrors() {
     asyncTestStarted();
     var f = new File('.');
-    Expect.throws(f.readAsBytesSync, (e) => e is FileException);
-    Expect.throws(f.readAsStringSync, (e) => e is FileException);
-    Expect.throws(f.readAsLinesSync, (e) => e is FileException);
+    Expect.throws(f.readAsBytesSync, (e) => e is FileSystemException);
+    Expect.throws(f.readAsStringSync, (e) => e is FileSystemException);
+    Expect.throws(f.readAsLinesSync, (e) => e is FileSystemException);
     var readAsBytesFuture = f.readAsBytes();
     readAsBytesFuture.then((bytes) => Expect.fail("no bytes expected"))
     .catchError((e) {
       var readAsStringFuture = f.readAsString(encoding: UTF8);
       readAsStringFuture.then((text) => Expect.fail("no text expected"))
       .catchError((e) {
         var readAsLinesFuture = f.readAsLines(encoding: UTF8);
         readAsLinesFuture.then((lines) => Expect.fail("no lines expected"))
         .catchError((e) {
           asyncTestDone("testReadAsLines");
@@ skipping 154 matching lines @@
       .then((_) => lift(Expect.isFalse)(file.exists()))
       .then((_) => lift(Expect.isTrue)(newfile.exists()))
       .then((_) => newfile.delete())
       .then((_) => lift(Expect.isFalse)(newfile.exists()))
       .then((_) {
         if (Platform.operatingSystem != "windows") {
           new Link(source).create(dest)
             .then((_) => file.rename("xxx"))
             .then((_) { throw "Rename of broken link succeeded"; })
             .catchError((e) {
-              Expect.isTrue(e is FileException);
+              Expect.isTrue(e is FileSystemException);
               asyncTestDone("testRename$targetExists");
             });
         } else {
           asyncTestDone("testRename$targetExists");
         }
       });
   }
 
   static void testRenameSync({bool targetExists}) {
     String source = join(tempDirectory.path, 'rename_source');
@@ skipping 82 matching lines @@
       testLastModified();
       testDoubleAsyncOperation();
       asyncEnd();
     });
   }
 }
 
 main() {
   FileTest.testMain();
 }