UI: Support setting operator properties for `UILayout.operator_menu_enum()`

`UILayout.operator_menu_enum()` now returns the operator properties, just like
`UILayout.operator()`. This makes it possible to set options for the operator
displayed in the menu. In C it can be done through the new
`uiItemMenuEnumFullO()` or `uiItemMenuEnumFullO_ptr()`.

It's reasonable to have this, probably just a small thing never bothered to
add. D10912 could use it, the following comment can be addressed now too:
https://developer.blender.org/diffusion/B/browse/master/source/blender/editors/space_nla/nla_buttons.c$583-586

1 files changed, 11 insertions, 3 deletions

diff --git a/source/blender/editors/include/UI_interface.h b/source/blender/editors/include/UI_interface.h
index b8443b952a8..b23f3e29551 100644
--- a/source/blender/editors/include/UI_interface.h
+++ b/source/blender/editors/include/UI_interface.h
@@ -2425,12 +2425,20 @@ void uiItemPopoverPanelFromGroup(uiLayout *layout,
 
 void uiItemMenuF(uiLayout *layout, const char *name, int icon, uiMenuCreateFunc func, void *arg);
 void uiItemMenuFN(uiLayout *layout, const char *name, int icon, uiMenuCreateFunc func, void *argN);
-void uiItemMenuEnumO_ptr(uiLayout *layout,
+void uiItemMenuEnumFullO_ptr(uiLayout *layout,
+                             struct bContext *C,
+                             struct wmOperatorType *ot,
+                             const char *propname,
+                             const char *name,
+                             int icon,
+                             struct PointerRNA *r_opptr);
+void uiItemMenuEnumFullO(uiLayout *layout,
                          struct bContext *C,
-                         struct wmOperatorType *ot,
+                         const char *opname,
                          const char *propname,
                          const char *name,
-                         int icon);
+                         int icon,
+                         struct PointerRNA *r_opptr);
 void uiItemMenuEnumO(uiLayout *layout,
                      struct bContext *C,
                      const char *opname,