fix doc comments in dart:io and collection types

sdk/lib/collection/queue.dart

 // Copyright (c) 2011, 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.collection;
 
 /**
  * A [Queue] is a collection that can be manipulated at both ends. One
  * can iterate over the elements of a queue through [forEach] or with
  * an [Iterator].
@@ skipping 539 matching lines @@
         result.addLast(element as Object/*=E*/);
       }
       return result;
     }
   }
 
   // Iterable interface.
 
   Iterator<E> get iterator => new _ListQueueIterator<E>(this);
 
-  void forEach(void action(E element)) {
+  void forEach(void f(E element)) {

[Lasse Reichstein Nielsen, 2017/05/31 12:30:22]

I'd actually prefer to change the original to "action" instead.

     int modificationCount = _modificationCount;
     for (int i = _head; i != _tail; i = (i + 1) & (_table.length - 1)) {
-      action(_table[i]);
+      f(_table[i]);
       _checkModification(modificationCount);
     }
   }
 
   bool get isEmpty => _head == _tail;
 
   int get length => (_tail - _head) & (_table.length - 1);
 
   E get first {
     if (_head == _tail) throw IterableElementError.noElement();
@@ skipping 298 matching lines @@
     _queue._checkModification(_modificationCount);
     if (_position == _end) {
       _current = null;
       return false;
     }
     _current = _queue._table[_position];
     _position = (_position + 1) & (_queue._table.length - 1);
     return true;
   }
 }