@Nullable
  public static ASTNode getWhileBody(@Nullable ASTNode statement) {
    if (statement == null) {
      return null;
    }
    if (!is(statement, BASIC_WHILE_STATEMENT)) {
      return null;
    }
    return findChildByType(statement, STATEMENT_SET);
  }
@Nullable
  public static ASTNode getWhileBody(@Nullable ASTNode statement)