Fixing vexing parse issues with clang.
Fixing vexing parse issues with clang.

Reviewed-by: Andre Moreira Magalhaes (andrunko) <ab0884a012ded4e51536cd4c0ccf5fa57e1a637b@collabora.co.uk>
Reviewed-by: Rohan Garg <30ace01a789051dac21fb4eabb606bc7e6032fbf@gmail.com>
Tested-by: Rohan Garg <30ace01a789051dac21fb4eabb606bc7e6032fbf@gmail.com>

freedesktop-unofficial-mirror/telepathy__telepathy-qt,anantkamath/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,anantkamath/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,detrout/telepathy-qt,TelepathyIM/telepathy-qt,TelepathyIM/telepathy-qt,TelepathyIM/telepathy-qt,special/telepathy-qt-upstream,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,TelepathyIM/telepathy-qt,special/telepathy-qt-upstream,freedesktop-unofficial-mirror/telepathy__telepathy-qt,TelepathyQt/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,TelepathyQt/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,tiagosh/telepathy-qt,tiagosh/telepathy-qt,TelepathyIM/telepathy-qt,detrout/telepathy-qt,tiagosh/telepathy-qt,anantkamath/telepathy-qt,TelepathyQt/telepathy-qt,special/telepathy-qt-upstream,tiagosh/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,TelepathyQt/telepathy-qt,detrout/telepathy-qt