message: modify invoke tests
diff: --TEST--
  swoole_coroutine: coro invoke
  --SKIPIF--
  -<?php require __DIR__ . "/../include/skipif.inc"; ?>
  +<?php require __DIR__ . "/../../include/skipif.inc"; ?>
  --FILE--
  <?php
  use Swoole\Coroutine as co;
  co::set(['trace_flags' => 1]);
  co::create(function() {
  -
  +//execute ex
  $function = new ReflectionFunction('foo');
  - $function->invoke();
  + $function->invoke();//execute_ex
  echo "invoke end\n";
  });
  