hg: jdk/submit: 8223040: Add a ASGCT test

[jcbeyler at google.com]

Changeset: 6107554b0313
Author:    jcbeyler
Date:      2019-04-26 14:26 -0700
URL:       http://hg.openjdk.java.net/jdk/submit/rev/6107554b0313

8223040: Add a ASGCT test
Summary:
Reviewed-by:

! make/test/JtregNativeHotspot.gmk
+ test/hotspot/jtreg/serviceability/agct/MyPackage/AGCTTest.java
+ test/hotspot/jtreg/serviceability/agct/libAGCTTest.cpp