**Describe the bug**

-2147483648 is the minimum integer representable with Int32, but ``toInt32OrNull('-2147483648')`` returns ``NULL``. On the other hand ``toInt32('-2147483648')`` correctly returns ``-2147483648``.

**Does it reproduce on recent release?**

Yes. It happens on 21.7.5.29-stable

**How to reproduce**

```
SELECT
    toInt32('-2147483648'),
    toInt32OrNull('-2147483648')

Query id: 94f4e069-6c0e-44d9-8e94-7ee83b90a529

┌─toInt32('-2147483648')─┬─toInt32OrNull('-2147483648')─┐
│            -2147483648 │                         ᴺᵁᴸᴸ │
└────────────────────────┴──────────────────────────────┘
```

**Expected behavior**

``toInt32('-2147483648')`` and ``toInt32OrNull('-2147483648')`` should both return ``-2147483648``.

readBinaryBigEndian(T & x, ReadBuffer & buf)    
{
    for (size_t i = 0; i != std::size(x.items); ++i)
    {
        auto & item = x.items[std::size(x.items) - i - 1];
        readBinaryBigEndian(item, buf);
    }
}
inline void readText(is_integer auto & x, ReadBuffer & buf)
{
    if constexpr (std::is_same_v<decltype(x), bool &>)
        readBoolText(x, buf);
    else
        readIntText(x, buf);
}
inline bool tryReadText(is_integer auto & x, ReadBuffer & buf)
{
    return tryReadIntText(x, buf);
}
inline void readText(is_floating_point auto & x, ReadBuffer & buf) { readFloatText(x, buf); }