fix doc comments in dart:io and collection types

sdk/lib/collection/iterable.dart

 // Copyright (c) 2012, 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;
 
 /**
  * This [Iterable] mixin implements all [Iterable] members except `iterator`.
  *
  * All other methods are implemented in terms of `iterator`.
@@ skipping 58 matching lines @@
     } else {
       buffer.write("${iterator.current}");
       while (iterator.moveNext()) {
         buffer.write(separator);
         buffer.write("${iterator.current}");
       }
     }
     return buffer.toString();
   }
 
-  bool any(bool f(E element)) {
+  bool any(bool test(E element)) {
     for (E element in this) {
-      if (f(element)) return true;
+      if (test(element)) return true;
     }
     return false;
   }
 
   List<E> toList({bool growable: true}) =>
       new List<E>.from(this, growable: growable);
 
   Set<E> toSet() => new Set<E>.from(this);
 
   int get length {
@@ skipping 297 matching lines @@
       elision = "...";
       length += ELLIPSIS_SIZE + OVERHEAD;
     }
   }
   if (elision != null) {
     parts.add(elision);
   }
   parts.add(penultimateString);
   parts.add(ultimateString);
 }