Add heap_size annotation

Author: MichaReiser

crates/ty_python_semantic/src/types.rs

@@ -1452,7 +1452,7 @@ impl<'db> Type<'db> {
     /// P`, but not `B <: P`. Losing transitivity of subtyping is not tenable (it makes union and
     /// intersection simplification dependent on the order in which elements are added), so we do
     /// not use this more general definition of subtyping.
-    #[salsa::tracked(cycle_fn=is_subtype_of_cycle_recover, cycle_initial=is_subtype_of_cycle_initial)]
+    #[salsa::tracked(cycle_fn=is_subtype_of_cycle_recover, cycle_initial=is_subtype_of_cycle_initial, heap_size=ruff_memory_usage::heap_size)]
     pub(crate) fn is_subtype_of(self, db: &'db dyn Db, target: Type<'db>) -> bool {
         self.when_subtype_of(db, target).is_always_satisfied()
     }