[Bug]: Incorrect variable type for NewArray operation

[Troublor]

Describe the issue:

When using new expression to initialize a dynamic array, e.g., uint[] memory arr = new uint[](2);, slither convert it to a NewArray IR operation.
However, the type of lvalue, arr variable in the example, is incorrectly set as uint256 instead of uint256[].

Code example to reproduce the issue:

contract A {
    function foo() public returns (uint) {
        uint[] memory arr = new uint[](2);
        return 0;
    }
}

Version:

0.9.2

Relevant log output:

Contract A
        Function A.foo() (*)
                Expression: arr = new uint256[](2)
                IRs:
                        TMP_1 = new uint256[](2)
                        arr(uint256[]) := TMP_1(uint256) # TMP_1 has wrong type
                Expression: 0
                IRs:
                        RETURN 0