Test fix: remove extraneous print

runtime/lib/growable_array.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 GrowableObjectArray<T> implements Array<T> {
   Array<T> backingArray;
 
   void copyFrom(Array<Object> src, int srcStart, int dstStart, int count) {
     Arrays.copy(src, srcStart, this, dstStart, count);
   }
@@ skipping 37 matching lines @@
       throw new IndexOutOfRangeException(start);
     }
     if (this.length + length >= backingArray.length) {
       grow(backingArray.length + length);
     }
     Arrays.copy(backingArray,
                 start,
                 backingArray,
                 start + length,
                 this.length - start);
-    print(backingArray[2]);
     if (initialValue !== null) {
       for (int i = start; i < start + length; i++) {
         backingArray[i] = initialValue;
       }
     }
     this.length = this.length + length;
   }
 
   List<T> getRange(int start, int length) {
     if (length == 0) return [];
@@ skipping 165 matching lines @@
     if (!hasNext()) {
       throw const NoMoreElementsException();
     }
     return _array[_pos++];
   }
 
   final GrowableObjectArray<T> _array;
   int _pos;
 }