Unbreak pub:

sdk/lib/_internal/compiler/implementation/lib/js_array.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 _interceptors;
 
 /**
  * The interceptor class for [List]. The compiler recognizes this
  * class as an interceptor, and changes references to [:this:] to
  * actually use the receiver of the method, which is generated as an extra
@@ skipping 74 matching lines @@
   }
 
   void forEach(void f(E element)) {
     return IterableMixinWorkaround.forEach(this, f);
   }
 
   Iterable map(f(E element)) {
     return IterableMixinWorkaround.mapList(this, f);
   }
 
+  List mappedBy(f(E element)) {
+    return IterableMixinWorkaround.mappedByList(this, f);
+  }
+
   String join([String separator]) {
     if (separator == null) separator = "";
     var list = new List(this.length);
     for (int i = 0; i < this.length; i++) {
       list[i] = "${this[i]}";
     }
     return JS('String', "#.join(#)", list, separator);
   }
 
   Iterable<E> take(int n) {
@@ skipping 114 matching lines @@
       throw new RangeError.value(start + length);
     }
 
     Arrays.copy(from, startFrom, this, start, length);
   }
 
   bool any(bool f(E element)) => IterableMixinWorkaround.any(this, f);
 
   bool every(bool f(E element)) => IterableMixinWorkaround.every(this, f);
 
-  Iterable<E> get reversed => IterableMixinWorkaround.reversedList(this);
+  List<E> get reversed => IterableMixinWorkaround.reversedList(this);
 
   void sort([int compare(E a, E b)]) {
     checkMutable(this, 'sort');
     IterableMixinWorkaround.sortList(this, compare);
   }
 
   int indexOf(E element, [int start = 0]) {
     if (start is !int) throw new ArgumentError(start);
     return Arrays.indexOf(this, element, start, length);
   }
@@ skipping 42 matching lines @@
     return JS('var', '#[#]', this, index);
   }
 
   void operator []=(int index, E value) {
     checkMutable(this, 'indexed set');
     if (index is !int) throw new ArgumentError(index);
     if (index >= length || index < 0) throw new RangeError.value(index);
     JS('void', r'#[#] = #', this, index, value);
   }
 }