syncInto method
Syncs Dart-side fields into the already-allocated native pointer p.
Called by toC when originalPointer is set. The default implementation delegates to allocateInto; override only when sync and full allocation differ (e.g. to skip re-allocating nested pointers).
Implementation
@override
@nonVirtual
void syncInto(RaylibTemp temp, Pointer<C> p, String key) {}