Force initialize the runtime module in Module::genLLVMModule. It is required for all non-trivial D modules anyway, so why load it lazily? This fixes run/typeid_83.d (DtoDeclareTypeInfo expects runtime to be initialized)

module scope4;
int main()
{
    int i;
    try
    {
        return i;
    }
    finally
    {
        //i = 1;
    }
}