Remove List.fromList constructor, and List.copyFrom. They are duplicates of the new range methods.

tests/corelib/src/ListFromListTest.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.
-
-class ListFromListTest {
-
-  static testMain() {
-    var list = [1, 2, 4];
-
-    var sub = new List.fromList(list, 0, 3);
-    Expect.equals(3, sub.length);
-    Expect.equals(1, sub[0]);
-    Expect.equals(2, sub[1]);
-    Expect.equals(4, sub[2]);
-
-    sub = new List.fromList(list, 1, 3);
-    Expect.equals(2, sub.length);
-    Expect.equals(2, sub[0]);
-    Expect.equals(4, sub[1]);
-
-    sub = new List.fromList(list, 2, 3);
-    Expect.equals(1, sub.length);
-    Expect.equals(4, sub[0]);
-
-    sub = new List.fromList(list, 0, 0);
-    Expect.equals(0, sub.length);
-
-    sub = new List.fromList(list, 3, 3);
-    Expect.equals(0, sub.length);
-
-    sub = new List.fromList(list, 0, 1);
-    Expect.equals(1, sub.length);
-    Expect.equals(1, sub[0]);
-
-    sub = new List.fromList(list, 0, 2);
-    Expect.equals(2, sub.length);
-    Expect.equals(1, sub[0]);
-    Expect.equals(2, sub[1]);
-
-    sub = new List.fromList(list, 1, 2);
-    Expect.equals(1, sub.length);
-    Expect.equals(2, sub[0]);
-
-    sub = new List.fromList(list, -1, 2);
-    Expect.equals(2, sub.length);
-    Expect.equals(1, sub[0]);
-    Expect.equals(2, sub[1]);
-
-    sub = new List.fromList(list, 1, 5);
-    Expect.equals(2, sub.length);
-    Expect.equals(2, sub[0]);
-    Expect.equals(4, sub[1]);
-
-    list = [];
-    sub = new List.fromList(list, 1, 5);
-    Expect.equals(0, sub.length);
-
-    sub = new List.fromList(list, 0, 0);
-    Expect.equals(0, sub.length);
-
-    sub = new List.fromList(list, 0, 1);
-    Expect.equals(0, sub.length);
-
-    // Test that the original list is unchanged after modifications
-    // to the list.
-    list = [1, 2, 4];
-    sub = new List.fromList(list, 0, 3);
-    sub[0] = 42;
-    Expect.equals(1, list[0]);
-    Expect.equals(42, sub[0]);
-
-    sub.add(42);
-    Expect.equals(4, sub.length);
-    Expect.equals(3, list.length);
-
-    list.add(43);
-    Expect.equals(4, sub.length);
-    Expect.equals(4, list.length);
-
-    Expect.equals(42, sub[3]);
-    Expect.equals(43, list[3]);
-  }
-}
-
-main() {
-  ListFromListTest.testMain();
-}