unify pointer width

src/macros.rs

@@ -171,12 +171,13 @@ macro_rules! typed_arena_ptr_as_cell {
 }
 
 macro_rules! raw_ptr_as_cell {
-    ($ptr:expr) => {
+    ($ptr:expr) => {{
         // Cell is 64-bit, but raw ptr is 32-bit in 32-bit systems
         // TODO use <*{const,mut} _>::addr instead of as when the strict_provenance feature is stable rust-lang/rust#95228
         // we might need <*{const,mut} _>::expose_provenance for strict provenance, dependening on how we recreate a pointer later
-        HeapCellValue::from_raw_ptr_bytes(($ptr as usize).to_ne_bytes())
-    };
+        let ptr : *const _ = $ptr;
+        HeapCellValue::from_ptr_addr(ptr as usize)
+    }};
 }
 
 macro_rules! untyped_arena_ptr_as_cell {