Hide call to unsafe method inside of an unsafe block in rooting macro.

Author: jdm

mozjs/src/gc/macros.rs

@@ -21,7 +21,7 @@ macro_rules! rooted {
         let $($var)+: $crate::gc::RootedGuard<$type> = $crate::gc::RootedGuard::new(
             $cx,
             &mut __root,
-            <$type as $crate::gc::GCMethods>::initial(),
+            unsafe { <$type as $crate::gc::GCMethods>::initial() },
         );
     };
 }