Rename analyzer_experimental to analyzer.

pkg/analyzer/lib/src/generated/utilities_collection.dart

 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 library engine.utilities.collection;
 import 'java_core.dart';
 import 'scanner.dart' show Token;
 /**
  * The class `BooleanArray` defines methods for operating on integers as if they were arrays
  * of booleans. These arrays can be indexed by either integers or by enumeration constants.
  */
 class BooleanArray {
@@ skipping 104 matching lines @@
    *
    * @param list the list to which the elements are to be added
    * @param elements the elements to be added to the list
    */
   static void addAll(List list, List<Object> elements) {
     for (Object element in elements) {
       list.add(element);
     }
   }
 }