Function inner_entry

port/coroutine_test.cpp:74–78

unsigned g_nest_log = 0;

void inner_entry(void *) {
    g_nest_log |= 0x02;
    port_coroutine_yield();   /* yields back to outer */
    g_nest_log |= 0x08;
}

void outer_entry(void *) {
    g_nest_log |= 0x01;