Tests were failing because the right permissions were not provided to iwasm.
Also, test failures didn't trigger build failure due to typo - also fixed in this change.
In addition to that, this PR fixes a few issues with the test itself:
* the `server_init_complete` was not reset early enough causing the client to occasionally
assume the server started even though it didn't yet
* set `SO_REUSEADDR` on the server socket so the port can be reused shortly after
closing the previous socket
* defined receive-send-receive sequence from server to make sure server is alive at the
time of sending message
Calling `__wasi_sock_addr_resolve` syscall causes native stack overflow.
Given this is a standard function available in WAMR, we should have at least
the default stack size large enough to handle this case.
The socket tests were updated so they also run in separate thread, but
the simple retro program is:
```C
void *th(void *p)
{
struct addrinfo *res;
getaddrinfo("amazon.com", NULL, NULL, &res);
return NULL;
}
int main(int argc, char **argv)
{
pthread_t pt;
pthread_create(&pt, NULL, th, NULL);
pthread_join(pt, NULL);
return 0;
}
```