[gjs] (20 commits) Non-fast-forward update to branch master.windows

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'master.windows' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  f6f015c... win32/NMake: Require Visual Studio 2017 15.6 or later
  706833f... Visual Studio builds: Refine things a bit
  c6849a9... gi/*.h: Be clear about the templates used with friend class
  975e943... Fix building of gjs_profiler_chain_signal() on Windows
  c99e27e... gjs/debugger.cpp: Fix build on Windows
  fabb1fa... gjs/context.cpp: Build heap dumping only on UNIX
  b6d0352... gi/[arg|object].cpp: Avoid ambiguity in smart pointers
  6072354... gjs-util.c: Fix building gjs_open_bytes() on Windows
  75255ab... gjs: Avoid ambiguity in smart pointers
  c3c6de9... gjs: Work around Visual Studio 2017 bug

Commits added to the branch:

  6d25dbe... context: Trace atoms (*)
  cf71e3b... boxed: Clarify lifecycle log messages (*)
  7b33075... boxed: Mark pointer as unowned when discarding boxed object (*)
  554e3d7... CI: Always build HEAD in Flatpak manifest (*)
  e86788f... CI: Adjust flatpak-builder configuration (*)
  304d921... native: Fix signature of gjs_is_registered_native_module() (*)
  f3b8482... native: Use static destructor to free native modules regist (*)
  80d8f96... build: Add valgrind suppression for permanent g-i data (*)
  0b443dc... CI: Add python3-setuptools to Debian-based images (*)
  5eb80e2... Merge branch 'fix-ci-bugs' into 'master' (*)
  5dac945... win32/NMake: Require Visual Studio 2017 15.6 or later
  aefadf7... Visual Studio builds: Refine things a bit
  82ebdb7... gi/*.h: Be clear about the templates used with friend class
  2c75551... Fix building of gjs_profiler_chain_signal() on Windows
  6c3c76c... gjs/debugger.cpp: Fix build on Windows
  5c40e8c... gjs/context.cpp: Build heap dumping only on UNIX
  9a43b84... gi/[arg|object].cpp: Avoid ambiguity in smart pointers
  f1c881b... gjs-util.c: Fix building gjs_open_bytes() on Windows
  d991823... gjs: Avoid ambiguity in smart pointers
  7220d20... gjs: Work around Visual Studio 2017 bug

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