Genode and sign-conversion warnings.

[Piotr Tworek]

Hello,

Since Wconversion got enabled on Genode master branch I'm wondering if
there are any plans WRT Wsign-conversion warnings? I presonally find it
a bit strange GCC Wconversion does not also enable Wsign-conversion.
IMO implicit conversions between signed and unsigned types are as often
as bad as implicit conversion between types of different size.

/ptw