[gtk] (56 commits) ...Merge branch 'matthiasc/for-master' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  38c39e2... NEWS: Updates (*)
  03fec38... docs: Add details for gsk_renderer_new_for_surface (*)
  a0ee25a... gtk-demo: Remove unnecessary code (*)
  49bdc4f... Add another constraints demo (*)
  b8f44de... constraintlayout: Fix parsing from ui file (*)
  588fe5b... gtk-demo: Tweak the new constraints demo (*)
  4b8134b... constraintlayout: Emit less change notification (*)
  2dbaca2... constraintlayout: Make sure guides get their constraints (*)
  19052d4... gtk-demo: Tweak descriptions of constraints demos (*)
  505df33... Add a test for constraints in ui files (*)
  b23cae9... Drop unused gtk_buildable_set_buildable_property (*)
  d35a218... testsuite: Improve coverage for GtkBoolFilter (*)
  2b38d14... tests: Improve coverage for css data url parsing (*)
  01d52a7... testsuite: Make all css tests run again (*)
  c279bda... testsuite: Improve coverage for GtkStringFilter (*)
  59dd7d8... testsuite: Improve coverage for GtkMultiFilter (*)
  48dcbf4... expression: Fix property expressions for interfaces (*)
  26150d8... testsuite: Improve coverage for GtkExpression (*)
  f0e35c8... Drop unused includes (*)
  1702a4c... Drop an unused private function (*)
  9b78bc4... testsuite: Improve coverage (*)
  af5e13b... Remove an unused function (*)
  1c4c5e3... testsuite: Improve coverage for GtkStringList (*)
  875452b... testsuite: Improve coverage for GtkMultiSorter (*)
  7db58d5... gsk: Don't compile unused code (*)
  9067654... css: Fix tokenization of CDO (*)
  1a12999... testsuite: Add a css test (*)
  48381bd... testsuite: Add a forgotten test (*)
  970f91e... testsuite: Add more css parser tests (*)
  07c491f... testsuite: Improve coverage for keys (*)
  642ad4e... testsuite: Improve coverage for rectangles (*)
  c8432ae... testsuite: Improve coverage for seats (*)
  2dcc641... testsuite: Improve coverage for GdkDisplayManager (*)
  168b21c... testsuite: Improve coverage for GdkTexture (*)
  cb018ec... builder-tool: Avoid a crash (*)
  b0b00d4... testsuite: Test gtk4-builder-tool simplify --replace (*)
  a4e5f5c... testsuite: More gtk4-builder-tool tests (*)
  5702b71... Remove leftover file (*)
  c630285... Cosmetics (*)
  3cf26b4... Fix the definition of GtkWidget:can-target (*)
  e135772... buildertool: Improve GtkOverlay rewriting (*)
  b79637a... testsuite: Test GtkOverlay rewriting (*)
  d74c2a7... builder-tool: Drop unneeded code (*)
  ac20c9c... builder-tool: Fix rewriting GtkPaned (*)
  0cf372c... testsuite: Test GtkPaned rewriting (*)
  c01f3be... testsuite: Test GtkActionBar rewriting (*)
  3e8a22a... builder-tool: Rewrite GtkToolbar more (*)
  c3f8010... testsuite: Test GtkToolbar rewriting (*)
  4039b71... Set G_LOG_USE_STRUCTURED globally (*)
  5751cd6... builder-tool: Install a log writer (*)
  2613c2e... builder-tool: Avoid duplicate path prefixes (*)
  38f74d8... builder-tool: Rewrite GtkFixed more (*)
  4bd829e... testsuite: Test GtkFixed rewriting (*)
  44b36b6... builder-tool: Stop rewriting GtkPopoverMenu (*)
  403a70c... testsuite: Add tests for gtk4-builder-tool validate (*)
  efc3141... Merge branch 'matthiasc/for-master' into 'master'

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