private void handle(@NotNull PsiElement element) {
        if (IOUtil.isAscii(element.getText())) return;
        // "Basic Latin" is a proper noun
        //noinspection DialogTitleCapitalization
        holder.registerProblem(element, JavaI18nBundle.message("inspection.non.basic.latin.character.display.name"), new ConvertToBasicLatinFix());
      }
private void handle(@NotNull PsiElement element)