Code cleanup (mostly io lib and some http lib).

sdk/lib/io/file_system_entity.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.
 
 part of dart.io;
 
 class FileSystemEntityType {
   static const FILE = const FileSystemEntityType._internal(0);
   static const DIRECTORY = const FileSystemEntityType._internal(1);
   static const LINK = const FileSystemEntityType._internal(2);
   static const NOT_FOUND = const FileSystemEntityType._internal(3);
   static const _typeList = const [FileSystemEntityType.FILE,
                                   FileSystemEntityType.DIRECTORY,
                                   FileSystemEntityType.LINK,
                                   FileSystemEntityType.NOT_FOUND];
-  const FileSystemEntityType._internal(int this._type);
+  final int _type;
+
+  const FileSystemEntityType._internal(this._type);
 
   static FileSystemEntityType _lookup(int type) => _typeList[type];
   String toString() => const ['FILE', 'DIRECTORY', 'LINK', 'NOT_FOUND'][_type];
-
-  final int _type;
 }
 
 /**
  * A FileStat object represents the result of calling the POSIX stat() function
  * on a file system object.  It is an immutable object, representing the
  * snapshotted values returned by the stat() call.
  */
 class FileStat {
   // These must agree with enum FileStat in file.h.
   static const _TYPE = 0;
   static const _CHANGED_TIME = 1;
   static const _MODIFIED_TIME = 2;
   static const _ACCESSED_TIME = 3;
   static const _MODE = 4;
   static const _SIZE = 5;
 
+  /**
+   * The time of the last change to the data or metadata of the file system
+   * object.  On Windows platforms, this is instead the file creation time.
+   */
+  final DateTime changed;
+  /**
+   * The time of the last change to the data of the file system
+   * object.
+   */
+  final DateTime modified;
+  /**
+   * The time of the last access to the data of the file system
+   * object.  On Windows platforms, this may have 1 day granularity, and be
+   * out of date by an hour.
+   */
+  final DateTime accessed;
+  /**
+   * The type of the object (file, directory, or link).  If the call to
+   * stat() fails, the type of the returned object is NOT_FOUND.
+   */
+  final FileSystemEntityType type;
+  /**
+   * The mode of the file system object.  Permissions are encoded in the lower
+   * 16 bits of this number, and can be decoded using the [modeString] getter.
+   */
+  final int mode;
+  /**
+   * The size of the file system object.
+   */
+  final int size;
+
   FileStat._internal(this.changed,
                      this.modified,
                      this.accessed,
                      this.type,
                      this.mode,
                      this.size);
 
   external static List<int> _statSync(String path);
 
 
@@ skipping 56 matching lines @@
    * letter for missing permissions.  Extra permission bits may be represented
    * by prepending "(suid)", "(guid)", and/or "(sticky)" to the mode string.
    */
   String modeString() {
     var permissions = mode & 0xFFF;
     var codes = const ['---', '--x', '-w-', '-wx', 'r--', 'r-x', 'rw-', 'rwx'];
     var result = [];
     if ((permissions & 0x800) != 0) result.add("(suid) ");
     if ((permissions & 0x400) != 0) result.add("(guid) ");
     if ((permissions & 0x200) != 0) result.add("(sticky) ");
-    result.add(codes[(permissions >> 6) & 0x7]);
-    result.add(codes[(permissions >> 3) & 0x7]);
-    result.add(codes[permissions & 0x7]);
+    result
+        ..add(codes[(permissions >> 6) & 0x7])
+        ..add(codes[(permissions >> 3) & 0x7])
+        ..add(codes[permissions & 0x7]);
     return result.join();
   }
-
-  /**
-   * The time of the last change to the data or metadata of the file system
-   * object.  On Windows platforms, this is instead the file creation time.
-   */
-  final DateTime changed;
-  /**
-   * The time of the last change to the data of the file system
-   * object.
-   */
-  final DateTime modified;
-  /**
-   * The time of the last access to the data of the file system
-   * object.  On Windows platforms, this may have 1 day granularity, and be
-   * out of date by an hour.
-   */
-  final DateTime accessed;
-  /**
-   * The type of the object (file, directory, or link).  If the call to
-   * stat() fails, the type of the returned object is NOT_FOUND.
-   */
-  final FileSystemEntityType type;
-  /**
-   * The mode of the file system object.  Permissions are encoded in the lower
-   * 16 bits of this number, and can be decoded using the [modeString] getter.
-   */
-  final int mode;
-  /**
-   * The size of the file system object.
-   */
-  final int size;
 }
 
 
 /**
  * A [FileSystemEntity] is a common super class for [File] and
  * [Directory] objects.
  *
  * [FileSystemEntity] objects are returned from directory listing
  * operations. To determine if a FileSystemEntity is a [File] or a
  * [Directory], perform a type check:
@@ skipping 579 matching lines @@
     return buffer.toString();
   }
 }
 
 
 class _FileSystemWatcher {
   external static Stream<FileSystemEvent> watch(
       String path, int events, bool recursive);
   external static bool get isSupported;
 }