Fixes for 32 bit build on linux

[Tobias Hartmann]

Hi Roland,

On 17.02.2017 13:52, Roland Westrelin wrote:
> Nope. I don't have such a plan. We could force ValueTypePassFieldsAsArgs
> to false on 32 bits to be able to run those tests?

Okay, yes, I'll do that with my next change (found some other problems as well).

Best regards,
Tobias