REDO of JDK-8351375

The tests uses nsk_jvmti_setFailStatus() in
Agent_OnUnload(..)
or in VMDeath event handled.

However it is too late and test never checks this code.

It is also needed to always verify that status is checked.

Better to fail early. No need to complete. clean up tests if they are failed.

Test test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/events/EM04/em04t001/em04t001.cp
should be updated to destroy locks earlier.