RFR (XS): 8173936 [TESTBUG] test/serviceability/jvmti/ModuleAwareAgents/ClassFileLoadHook/MAAClassFileLoadHook.java needs to be re-examined

[serguei.spit...@oracle.com]

Please, review a fix for the test bug:   https://bugs.openjdk.java.net/browse/JDK-8173936 Webrev:   http://cr.openjdk.java.net/~sspitsyn/webrevs/2017/hotspot/8173936-MAA-cflh.1/ Summary:   This test expects CFLH events in the JVMTI start phase but it no longer gets these events because   the Jigsaw implementation has changed in a way that no longer loads any classes in this phase   unless the capability can_generate_early_vmstart is enabled.   The fix is to expect CFLH events in the JVMTI start phase only if this capability is enabled. Testing:   The fixed test ClassFileLoadHook/MAAClassFileLoadHook.java is passed now. Thanks, Serguei