Compare scripts via object_id

Author: TitanNano

godot-core/src/obj/script.rs

@@ -354,15 +354,15 @@ where
     O: Inherits<Object>,
     S: Inherits<Script> + IScriptExtension + super::Bounds<Declarer = super::bounds::DeclUser>,
 {
+
     let object_script_variant = object.upcast_ref().get_script();
 
     if object_script_variant.is_nil() {
         return false;
     }
 
-    let object_script: Gd<Script> = object_script_variant.to();
 
-    if object_script.upcast_ref::<Script>().__object_ptr() != script.upcast_ref().__object_ptr() {
+    if object_script_variant.object_id().map(|instance_id| instance_id != script.instance_id()).unwrap_or(true) {
         return false;
     }
 
@@ -371,6 +371,8 @@ where
     };
 
     let get_instance_fn = sys::interface_fn!(object_get_script_instance);
+
+    // SAFETY: object and language are alive and their sys pointers are valid
     let instance = unsafe { get_instance_fn(object.obj_sys(), language.obj_sys()) };
 
     !instance.is_null()