Rename analyzer_experimental to analyzer.

pkg/analyzer_experimental/lib/src/generated/java_engine.dart

-library java.engine;
-
-class StringUtilities {
-  static const String EMPTY = '';
-  static const List<String> EMPTY_ARRAY = const <String> [];
-  static String intern(String s) => s;
-  static String substringBefore(String str, String separator) {
-    if (str == null || str.isEmpty) {
-      return str;
-    }
-    int pos = str.indexOf(separator);
-    if (pos < 0) {
-      return str;
-    }
-    return str.substring(0, pos);
-  }
-}
-
-class FileNameUtilities {
-  static String getExtension(String fileName) {
-    if (fileName == null) {
-      return "";
-    }
-    int index = fileName.lastIndexOf('.');
-    if (index >= 0) {
-      return fileName.substring(index + 1);
-    }
-    return "";
-  }
-}
-
-class ArrayUtils {
-  static List addAll(List target, List source) {
-    List result = new List.from(target);
-    result.addAll(source);
-    return result;
-  }
-}
-
-class UUID {
-  static int __nextId = 0;
-  final String id;
-  UUID(this.id);
-  String toString() => id;
-  static UUID randomUUID() => new UUID((__nextId).toString());
-}