Move native_ast lookup before gc handler install (debug)

Author: adamziel

packages/php-ext-wp-mysql-parser/src/lib.rs

@@ -1942,6 +1942,7 @@ impl WpMySqlNativeParser {
             }
             .into_zval(false)
             .map_err(php_error)?;
+            let native_ast = native_ast(&native_ast_zval)?;
             // Install our custom `get_gc` so PHP's cycle collector can
             // see the cached wrappers held by the Rust-side HashMap.
             unsafe {
@@ -1950,7 +1951,6 @@ impl WpMySqlNativeParser {
                     .ok_or_else(|| php_error("Native AST zval is not an object"))?;
                 install_gc_handler_for((obj_ref as *const ZendObject) as *mut zend_object);
             }
-            let native_ast = native_ast(&native_ast_zval)?;
             native_ast.arena.create_php_ast(&native_ast_zval)
         })
     }