Native runtime uses int arguments with unspecified size

[iacore]

C int doesn't have defined size. It's a terrible choice for ABI compatibility.

void w4_runtimeBlitSub (const uint8_t* sprite, int x, int y, int width, int height, int srcX, int srcY, int stride, int flags);

[iacore]

Also, the native implementation has 58975 bytes of user data, but should be userdata: [58976]u8