Makes a few intermittently failing tests more resilient to port reuse issues by ensuring they bind to the loopback address instead of the wildcard.
Reviewed-by: alanb, chegar
Replaces binding to wildacard with alternative less susceptible to intermittent failure in some intermittently failing tests.
Reviewed-by: chegar, msheppar
Tests are updated to use the loopback address instead of the wildcard to avoid traffic being routed to a different server than what was intended by the test.
Reviewed-by: chegar
