Remove List.copyFrom from VM and from tests. It was removed from the List interface in r941.

tests/corelib/growable_object_array_vm_test.dart

Index: tests/corelib/growable_object_array_vm_test.dart
diff --git a/tests/corelib/growable_object_array_vm_test.dart b/tests/corelib/growable_object_array_vm_test.dart
index 0b5707463b741a380e4e73b931b51319abbaefae..97ec78768e04b77ede73c4a22f9dc476b0c7b9a3 100644
--- a/tests/corelib/growable_object_array_vm_test.dart
+++ b/tests/corelib/growable_object_array_vm_test.dart
@@ -38,7 +38,7 @@ class GrowableObjectArrayTest {
     GrowableObjectArray mapped = array.map(testMap);
 
     Expect.equals(5, mapped.length);
-   
+
     Expect.equals(3, mapped[0]);
     Expect.equals(4, mapped[1]);
     Expect.equals(5, mapped[2]);
@@ -46,7 +46,7 @@ class GrowableObjectArrayTest {
     Expect.equals(3, mapped[4]);
 
     Expect.equals(5, array.length);
-   
+
     Expect.equals(1, array[0]);
     Expect.equals(2, array[1]);
     Expect.equals(3, array[2]);
@@ -90,11 +90,11 @@ class GrowableObjectArrayTest {
     for (int i = 0; i < 10; i++) {
       array.add(i);
     }
-    array.copyFrom(array, 7, 8, 2);
+    array.setRange(8, 2, array, 7);
     Expect.equals(7, array[7]);
     Expect.equals(7, array[8]);
     Expect.equals(8, array[9]);
-    array.copyFrom(array, 5, 4, 2);
+    array.setRange(4, 2, array, 5);
     Expect.equals(5, array[4]);
     Expect.equals(6, array[5]);
     Expect.equals(6, array[6]);