[glib] (17 commits) Non-fast-forward update to branch gobject-speedups4

[Matthias Clasen <matthiasc src gnome org>]

The branch 'gobject-speedups4' 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:

  a99c4ee... Improve GObject perf test
  caa4ceb... gobject: Drop an unused quark
  81d1239... Simplify g_object_new_with_properties
  7639bb6... Don't inline deprecation warnings
  d998bcf... Keep a count of construct params
  1b0518a... Move deprecation warnings to object_set_property
  82e247e... Don't copy values when collecting in g_object_new
  de90770... Don't copy values during g_object_set
  e8e8a08... Keep a separate flag for notify handlers
  90aa36b... Avoid property notification during object construction
  42626c3... Avoid property notification during g_object_set
  a369886... Avoid g_object_ref/unref in some cases
  8b5fd8e... Avoid g_value_type_compatible
  871e585... Avoid g_param_spec_get_redirect_target
  dba2005... Avoid g_type_class_peek
  0180ec7... gobject: Speed up property lookup

Commits added to the branch:

  a065a1d... Add g_param_value_is_valid to the docs (*)
  b089798... Improve GObject perf test (*)
  2df99bf... gobject: Drop an unused quark (*)
  dbd0c20... Simplify g_object_new_with_properties (*)
  33441f7... Don't inline deprecation warnings (*)
  703ed73... Keep a count of construct params (*)
  635cf28... Move deprecation warnings to object_set_property (*)
  8b21b17... Don't copy values when collecting in g_object_new (*)
  9999553... Don't copy values during g_object_set (*)
  b200291... Keep a separate flag for notify handlers (*)
  cf5c8b0... Avoid property notification during object construction (*)
  aacf7c8... Avoid property notification during g_object_set (*)
  b4b1a72... Avoid g_object_ref/unref in some cases (*)
  3a574a8... Avoid g_value_type_compatible (*)
  e13254a... Avoid g_param_spec_get_redirect_target (*)
  dca68db... Avoid g_type_class_peek (*)
  2daad1a... gobject: Speed up property lookup

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