bcbb042c1b
* Regression tests for an onRequest hook on server() * Compose the application's onRequest hook into server() past bind * Document the server's onRequest hook and record the composition decision * Pin that a re-bind and a pre-bind unbind never reach the hook, and that a non-function hook is refused at startup * Keep every bind and all pre-bind traffic out of the application's hook * Make the hook's published promises exact, and record the src layout deferral * Trim the record to what the tests do not already forbid * Pin that nothing answers a request whose hook failed * Answer nothing for a request whose hook failed, on both surfaces alike * State the hook's failure policy as it now behaves * Name the request a failed handler left unanswered, and say what a wedged hook reports