(11) RFR (S) JDK-8198304: VS2017 (C4838, C4312) Various conversion issues with gtest tests

[George Triantafillou]

Hi Lois,

Your changes look good.

-George

On 2/22/2018 1:32 PM, Lois Foltan wrote:
> Please review this change to fix VS2017 conversion compilation errors 
> within two Hotspot gtest tests.
>
> open webrev at http://cr.openjdk.java.net/~lfoltan/bug_jdk8198304/webrev/
> bug link https://bugs.openjdk.java.net/browse/JDK-8198304
>
> Testing: hs-tier(1-3), jdk-tier(1-3) complete
>
> Thanks,
> Lois