private static void processLiterals(@NotNull final Set<? extends PsiLiteralExpression> literals,
                                      @NotNull final HighlightInfo.Builder info, TextRange fixRange) {
    for (PsiLiteralExpression literal : literals) {
      final ChangeStringLiteralToCharInMethodCallFix fix = new ChangeStringLiteralToCharInMethodCallFix(literal);
      info.registerFix(fix, null, null, fixRange, null);
    }
  }
private static void processLiterals(@NotNull final Set<? extends PsiLiteralExpression> literals,
                                      @NotNull final HighlightInfo.Builder info, TextRange fixRange)