git: openjdk/loom: fibers: ExceptionCatch event test adopted for vthread.

[duke]

Changeset: 4e35c8a0
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2021-01-14 22:47:26 +0000
URL:       https://git.openjdk.java.net/loom/commit/4e35c8a0

ExceptionCatch event test adopted for vthread.

! test/hotspot/jtreg/serviceability/jvmti/events/ExceptionCatch/excatch01/excatch01.java
! test/hotspot/jtreg/serviceability/jvmti/events/ExceptionCatch/excatch01/libexcatch01.cpp