RFR(XS): 8171097: Convert TestReservedSpace_test to Gtest

[Kirill Zhaldybin]

After getting offline comments I updated webrev: 
http://cr.openjdk.java.net/~kzhaldyb/webrevs/JDK-8171097/webrev.01/

Changes:
1. Deleted "return;" which was not needed
2. Changed two ASSERTs to EXPECTs

Thank you.

Regards, KIrill

On 12.12.2016 19:31, Kirill Zhaldybin wrote:
> Dear all,
>
> Could you please review this fix for 8171097?
>
> WebRev: 
> http://cr.openjdk.java.net/~kzhaldyb/webrevs/JDK-8171097/webrev.00/
> CR: https://bugs.openjdk.java.net/browse/JDK-8171097
>
> Thank you.
>
> Regards, Kirill