RFR: JDK-8251384: [TESTBUG] jvmti tests should not be executed with minimal VM

[Alex Menkov]

Hi all,

please review the fix for
https://bugs.openjdk.java.net/browse/JDK-8251384
webrev:
http://cr.openjdk.java.net/~amenkov/jdk16/minimal_jvmti/webrev/

The fix introduces new @requires option "vm.jvmti":
test/lib/sun/hotspot/WhiteBox.java
test/jtreg-ext/requires/VMProps.java
src/hotspot/share/prims/whitebox.cpp
test/hotspot/jtreg/TEST.ROOT

and updates tests in test/hotspot/jtreg/serviceability/jvmti (the only 
change in all tests is added "@requires vm.jvmti")
Other tests will be updated in the follow-ups.

The