Remove insertRange.

runtime/lib/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.
 
 
 // TODO(srdjan): Use shared array implementation.
 class _ObjectArray<E> implements List<E> {
 
   factory _ObjectArray(length) native "ObjectArray_allocate";
 
@@ skipping 63 matching lines @@
         otherStart = skipCount;
       } else {
         otherList =
             iterable.skip(skipCount).take(length).toList(growable: false);
         otherStart = 0;
       }
       Arrays.copy(otherList, otherStart, this, start, length);
     }
   }
 
-  void removeRange(int start, int length) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError(
         "Cannot remove range of a non-extendable array");
   }
 
-  void insertRange(int start, int length, [E initialValue = null]) {
-    throw new UnsupportedError(
-        "Cannot insert range in a non-extendable array");
-  }
-
-
   List<E> sublist(int start, [int end]) {
     Arrays.indicesCheck(this, start, end);
     if (end == null) end = this.length;
     int length = end - start;
     if (start == end) return [];
     List list = new _GrowableObjectArray<E>.withCapacity(length);
     list.length = length;
     Arrays.copy(this, start, list, 0, length);
     return list;
   }
@@ skipping 201 matching lines @@
   void copyFrom(List src, int srcStart, int dstStart, int count) {
     throw new UnsupportedError(
         "Cannot modify an immutable array");
   }
 
   void setRange(int start, int end, Iterable<E> iterable, [int skipCount = 0]) {
     throw new UnsupportedError(
         "Cannot modify an immutable array");
   }
 
-  void removeRange(int start, int length) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError(
         "Cannot remove range of an immutable array");
   }
 
-  void insertRange(int start, int length, [E initialValue = null]) {
-    throw new UnsupportedError(
-        "Cannot insert range in an immutable array");
-  }
-
   List<E> sublist(int start, [int end]) {
     Arrays.indicesCheck(this, start, end);
     if (end == null) end = this.length;
     int length = end - start;
     if (start == end) return [];
     List list = new List<E>();
     list.length = length;
     Arrays.copy(this, start, list, 0, length);
     return list;
   }
@@ skipping 180 matching lines @@
     }
     _position = _length;
     _current = null;
     return false;
   }
 
   E get current {
     return _current;
   }
 }