[gtk/matthiasc/for-master] (8 commits) ...Merge branch 'master' into 'matthiasc/for-master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  0e5dac8... meson: Change introspection option to yielding feature (*)
  5b89253... Use correct child widget when measuring (*)
  5a3aed8... Merge branch 'introspection' into 'master' (*)
  81cfcba... Adwaita: close button for infobar, searchbar (*)
  c278261... Merge branch 'wip/jimmac/infosearch-close' into 'master' (*)
  9601863... CI: Enable introspection again for the Windows build (*)
  6de7022... Merge branch 'ci-win32-introspection-enabled' into 'master' (*)
  cbe3de9... Merge branch 'master' into 'matthiasc/for-master'

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