[glib] (21 commits) Non-fast-forward update to branch gobject-speedups2

[Matthias Clasen <matthiasc src gnome org>]

The branch 'gobject-speedups2' 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:

  935e981... param: Add g_param_value_is_valid
  fe81083... Add tests for g_param_value_is_valid
  791febc... gobject: Use value_is_valid
  2ea081c... Improve GObject perf test
  c06b306... gobject: Drop an unused quark
  218051a... Simplify g_object_new_with_properties
  d863a4a... Simplify g_object_notify_by_pspec
  84edc9b... Don't inline deprecation warnings
  ea69f15... Keep a count of construct params
  15c61c1... Move deprecation warnings to object_set_property
  817781a... Don't copy values when collecting in g_object_new
  bc9e84a... Don't copy values during g_object_set
  e65a89a... Keep a separate flag for notify handlers
  0633740... Avoid property notification during object construction
  d0c3504... Avoid property notification during g_object_set
  3673aa2... Avoid g_object_ref/unref in some cases
  e0da0aa... Avoid g_value_type_compatible
  3ce5ae3... Avoid g_param_spec_get_redirect_target
  752400d... Avoid g_type_class_peek
  abc399e... value: Add G_VALUE_COLLECT_INIT2
  462d513... Avoid g_type_peek_value_table

Commits added to the branch:

  251c664... param: Add g_param_value_is_valid (*)
  8ecf667... Add tests for g_param_value_is_valid (*)
  e8fe9d0... gobject: Use value_is_valid (*)
  0b18d9f... Improve GObject perf test (*)
  32ec4fa... gobject: Drop an unused quark (*)
  bbfec6e... Simplify g_object_new_with_properties (*)
  08ad43a... Simplify g_object_notify_by_pspec (*)
  9d21c79... Don't inline deprecation warnings (*)
  baf7ada... Keep a count of construct params (*)
  75e78c1... Move deprecation warnings to object_set_property (*)
  a536fe6... Don't copy values when collecting in g_object_new (*)
  8d946d6... Don't copy values during g_object_set (*)
  0f23cb5... Keep a separate flag for notify handlers (*)
  b6192e1... Avoid property notification during object construction (*)
  17312ee... Avoid property notification during g_object_set (*)
  2572216... Avoid g_object_ref/unref in some cases (*)
  60a08bc... Avoid g_value_type_compatible (*)
  2a56083... Avoid g_param_spec_get_redirect_target (*)
  0783cea... Avoid g_type_class_peek (*)
  18108b7... value: Add G_VALUE_COLLECT_INIT2
  a6f6ccb... Avoid g_type_peek_value_table

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