Function is_fncall_mem

ir/memory.cpp:77–81

}

static bool is_fncall_mem(unsigned bid) {
  if (!has_write_fncall && num_inaccessiblememonly_fns == 0)
    return false;
  return bid >= get_fncallmem_bid() && bid < num_nonlocals_src;
}

static void ensure_non_fncallmem(const Pointer &p) {
  if (!p.isLocal().isFalse())