[PATCH] Mere code changes to silence some warnings

[David Holmes]

Hi David,

can you please split these and take them to the component mailing lists: 
hotspot changes to hotspot-dev, and the rest to core-libs-dev.

BTW hotspot style nit - avoid implicit booleans: if (!p) -> if (p != NULL)

Thanks,
David H.

On 1/12/2017 3:06 AM, David CARLIER wrote:
> Hi dear list,
> 
> Here a tiny patch to address few compilation warnings, two concerns UB with
> define e.g #define A <cond> it is usually better this form #if <cond>
> #define A 1 ... Few types comparison miusmatches as well.
> 
> Hope is all good ... tested full build.
>