[gjs: 3/3] Merge branch 'type-flags' into 'master'

[Philip Chimento <pchimento src gnome org>]

commit 6f9ae7fc90dd49c15ab707f5e51ca3753e45ea83
Merge: 641c4295 022b6681
Author: Philip Chimento <philip chimento gmail com>
Date:   Sat Apr 27 03:56:05 2019 +0000

    Merge branch 'type-flags' into 'master'
    
    Support optional GTypeFlags value in GObject subclasses
    
    See merge request GNOME/gjs!290

 gi/object.cpp                          | 6 ++++++
 gi/private.cpp                         | 8 +++++---
 installed-tests/js/testGObjectClass.js | 9 +++++++++
 modules/_legacy.js                     | 3 ++-
 modules/overrides/GObject.js           | 7 ++++++-
 5 files changed, 28 insertions(+), 5 deletions(-)
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