[glib] (7 commits) ...Merge branch 'wip/tingping/happy-eyeballs'

[Michael Catanzaro <mcatanzaro src gnome org>]

Summary of changes:

  d6afa6c... gresolver: Add g_resolver_lookup_by_name_with_flags{_async, (*)
  35e4186... gnetworkaddress: Implement parallel ipv4 and ipv6 dns looku (*)
  c1e32b9... gsocketclient: Improve handling of slow initial connections (*)
  4b29e55... gnetworkaddress: Interleave ipv4 and ipv6 addresses (*)
  8b9e889... tests: Add gsocketclient test for slow connections (*)
  4c472f8... gsocketaddressenumerator: Make it an error to call next_asy (*)
  99d7894... Merge branch 'wip/tingping/happy-eyeballs'

(*) This commit already existed in another branch; no separate mail sent