git: openjdk/loom: fibers: gc/whitebox/TestConcMarkCycleWB.java updated to don't run with Xcomp

[duke]

Changeset: d3618334
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2022-04-06 10:34:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/d3618334787ec12e640463b708586ae9ac305db9

gc/whitebox/TestConcMarkCycleWB.java updated to don't run with Xcomp

! test/hotspot/jtreg/gc/whitebox/TestConcMarkCycleWB.java