Cleanup: always run both RNA_STRUCT_BEGIN & END macros

In this case it didn't cause any problems however macros with a
BEGIN/END must always run both, not optionally run based on knowledge
of the iterator implementation cleanup requirement.

source/blender/editors/geometry/node_group_operator.cc

@@ -440,14 +440,16 @@ static void run_node_group_ui(bContext *C, wmOperator *op)
 
 static bool run_node_ui_poll(wmOperatorType * /*ot*/, PointerRNA *ptr)
 {
+  bool result = false;
   RNA_STRUCT_BEGIN (ptr, prop) {
     int flag = RNA_property_flag(prop);
     if ((flag & PROP_HIDDEN) == 0) {
-      return true;
+      result = true;
+      break;
     }
   }
   RNA_STRUCT_END;
-  return false;
+  return result;
 }
 
 static std::string run_node_group_get_name(wmOperatorType * /*ot*/, PointerRNA *ptr)

source/blender/editors/interface/interface_templates.cc

@@ -2876,6 +2876,7 @@ static bool ui_layout_operator_properties_only_booleans(const bContext *C,
 
     PointerRNA ptr = RNA_pointer_create(&wm->id, op->type->srna, op->properties);
 
+    bool all_booleans = true;
     RNA_STRUCT_BEGIN (&ptr, prop) {
       if (RNA_property_flag(prop) & PROP_HIDDEN) {
         continue;
@@ -2885,10 +2886,14 @@ static bool ui_layout_operator_properties_only_booleans(const bContext *C,
         continue;
       }
       if (RNA_property_type(prop) != PROP_BOOLEAN) {
-        return false;
+        all_booleans = false;
+        break;
       }
     }
     RNA_STRUCT_END;
+    if (all_booleans == false) {
+      return false;
+    }
   }
 
   return true;

source/blender/windowmanager/intern/wm_event_system.cc

@@ -1025,16 +1025,18 @@ bool WM_operator_ui_poll(wmOperatorType *ot, PointerRNA *ptr)
     return true;
   }
 
+  bool result = false;
   PointerRNA op_ptr;
   WM_operator_properties_create_ptr(&op_ptr, ot);
   RNA_STRUCT_BEGIN (&op_ptr, prop) {
     int flag = RNA_property_flag(prop);
     if ((flag & PROP_HIDDEN) == 0) {
-      return true;
+      result = true;
+      break;
     }
   }
   RNA_STRUCT_END;
-  return false;
+  return result;
 }
 
 void WM_operator_region_active_win_set(bContext *C)