hg: jdk/sandbox: 8203802: Jvmti test fails to build with VS2017

[chris.hegarty at oracle.com]

Changeset: 75547f03c6b0
Author:    dtitov
Date:      2018-05-30 08:59 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/75547f03c6b0

8203802: Jvmti test fails to build with VS2017
Reviewed-by: sspitsyn, erikj

! make/test/JtregNativeHotspot.gmk
! test/hotspot/jtreg/vmTestbase/nsk/jvmti/unit/timers/JvmtiTest/JvmtiTest.c
! test/hotspot/jtreg/vmTestbase/nsk/share/native/nsk_tools.h