CompositeOperandTypeChecker should check operands without type coercion first

SqlSingleOperandTypeChecker operandTypeChecker = OperandTypes.or(
        OperandTypes.family(SqlTypeFamily.STRING, SqlTypeFamily.STRING)
            .and(OperandTypes.SAME_SAME),
        OperandTypes.family(SqlTypeFamily.INTEGER, SqlTypeFamily.INTEGER)
            .and(OperandTypes.SAME_SAME));

@Test void testCompositeOperandTypeWithoutCast() {
    SqlValidator validator = SqlTestFactory.INSTANCE.createValidator();

    SqlSingleOperandTypeChecker operandTypeChecker = OperandTypes.or(
        OperandTypes.family(SqlTypeFamily.STRING, SqlTypeFamily.STRING)
            .and(OperandTypes.SAME_SAME),
        OperandTypes.family(SqlTypeFamily.INTEGER, SqlTypeFamily.INTEGER)
            .and(OperandTypes.SAME_SAME));

    SqlBinaryOperator op = new SqlBinaryOperator(
        "~",
        SqlKind.OTHER,
        60,
        true,
        null,
        null,
        null);

    List<SqlLiteral> args = ImmutableList.of(
        SqlLiteral.createExactNumeric("20", SqlParserPos.ZERO),
        SqlLiteral.createExactNumeric("30", SqlParserPos.ZERO));

    SqlCallBinding binding = new SqlCallBinding(
        validator,
        new EmptyScope((SqlValidatorImpl) validator),
        new SqlBasicCall(op, args, SqlParserPos.ZERO));
    List<RelDataType> typesBeforeChecking =
        ImmutableList.of(binding.getOperandType(0), binding.getOperandType(1));

    operandTypeChecker.checkOperandTypes(binding, false);

    # It fails
    assertEquals(typesBeforeChecking.get(0), binding.getOperandType(0));
    assertEquals(typesBeforeChecking.get(1), binding.getOperandType(1));
  }