Support for creating a structure that have function pointers by selection

Let's say I've this:

void* data_1800cb168 = sub_1800998d0
void* data_1800cb170 = sub_180099a50
void* data_1800cb178 = sub_180099940
void* data_1800cb180 = sub_180099c20
void* data_1800cb188 = sub_180099cb0

When I select all of them and press S Binary Ninja creates a structure like this:

struct struct_1 data_1800cb168 = 
{
    void* field_0 = sub_1800998d0
    void* field_8 = sub_180099a50
    void* field_10 = sub_180099940
    void* field_18 = sub_180099c20
    void* field_20 = sub_180099cb0
}

It is good, but I guess we should set field types to function pointers.

For example first function have this prototype: int64_t sub_1800998d0(int64_t* arg1). So, field_0's type should be a pointer for that function.

I think this would be especially useful for creating virtual function tables.

Reproduce the selection of function assignments and the S structure-creation action described in the issue, then trace the structure and type inference entry points. Check how the selected functions' prototypes are available and define done as generated fields using function-pointer types rather than generic void*, including the virtual-function-table case.