Use a negative timestamp as the flag for this, making the test simple. This allows valgrind to detect that we're accessing them prematurely, including across the wire on gossip_getchannels_entry. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We leave the *build* results in lightningd/ for ease of in-place testing though. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>