Yul: better support of operations on array

```solidity
function f(uint[] memory _data) public view returns (uint o_sum) {
assembly {
let data := add(_data, 0x20)
}
}
```

```
TMP_0(uint256[]) = _data + 32
data(uint256) := TMP_0(uint256[])
```

`TMP_0` should not be a `uint256[]` here