Support "with"-style errno assertions. am: 2f4685bfae am: 8159f234a1 am: b3a5dd6764
am: 3fa70dadad

Change-Id: I1f1c6388109b6ab69c29a663b134e43e3e1a5626
tree: 2383579a3e1f5c1d87a211c5ed12f2faba0f5c03
  1. net/