[glib] (10 commits) Non-fast-forward update to branch task-trace

[Philip Withnall <pwithnall src gnome org>]

The branch 'task-trace' 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:

  0639eae... Bump the libsysprof-capture dependency
  83ff1fc... trace: Add support for integer counters
  9923bd3... Make the gtrace-private.h header usable in gio
  5b0caa3... gio: Include sysprof tracing support
  c2cbe7e... gio: Add some tracing to GTask

Commits added to the branch:

  705a59a... gio: Add missing nullable annotations (*)
  e2fbb74... Assert that GFileIcon::file is always set after constructio (*)
  ec9fb90... Mark g_subprocess_get_std{in,out,err}_pipe() return value a (*)
  fbfb067... Document that the get_default() functions for the various G (*)
  1c290ac... Merge branch 'gio-missing-nullable' into 'master' (*)
  ab65fb1... Bump the libsysprof-capture dependency
  977a5ce... trace: Add support for integer counters
  a9f21ad... Make the gtrace-private.h header usable in gio
  f91de6e... gio: Include sysprof tracing support
  2630801... gio: Add some tracing to GTask

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