[glib] (15 commits) Non-fast-forward update to branch mcatanzaro/#2597

[Michael Catanzaro <mcatanzaro src gnome org>]

The branch 'mcatanzaro/#2597' 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:

  d63b39d... proxy-test: fix check for simple:// URI scheme
  eb0f353... simpleproxyresolver: tighten precondition checks on default
  abf80d3... proxyaddressenumerator: always set error on first enumerati

Commits added to the branch:

  afc8a8f... Remove tests/gobject/timeloop-closure.c performance test (*)
  fcbdfb5... Remove tests/gobject empty directory (*)
  714a0aa... gbinding: Remove some duplicated code for checking property (*)
  67a168c... tests: Test g_binding_get_source() and g_binding_get_target (*)
  edd497f... Merge branch 'binding-code-duplication' into 'main' (*)
  7a4560e... tests: Port GObject singleton test to GTest framework (*)
  9af0444... tests: Simplify singleton test code using G_DECLARE_FINAL_T (*)
  1215278... tests: Add a singleton construct-property test (*)
  98bd4ea... gobject: Don't thaw excessively (*)
  6e42e2e... Merge branch 'fix-freeze-count-underflow' into 'main' (*)
  6b65b72... Merge branch 'timeloop-closure_test' into 'main' (*)
  f6714ef... proxy-test: fix check for simple:// URI scheme
  7b573b7... proxyaddressenumerator: always set error on first enumerati
  1d1f305... gsimpleproxyresolver: default_proxy should be consistently 
  8c00c81... gsimpleproxyresolver: ensure default proxy is valid

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