@Override
    public int getErrorsCount(final CharSequence seq, Language fileLanguage, final Project project) {
      Lexer lexer = myLexerFunction.apply(LanguageLevel.HIGHEST);
      return PsiBuilderUtil.hasProperBraceBalance(seq, lexer, JavaTokenType.LBRACE, JavaTokenType.RBRACE) ? NO_ERRORS : FATAL_ERROR;
    }
@Override
    public int getErrorsCount(final CharSequence seq, Language fileLanguage, final Project project)