hg: tsan/dev: Make uncaught exception in child threads trigger test failure.

[manc at google.com]

Changeset: 0a691930e701
Author:    manc
Date:      2019-07-25 14:27 -0700
URL:       https://hg.openjdk.java.net/tsan/dev/rev/0a691930e701

Make uncaught exception in child threads trigger test failure.

! test/hotspot/jtreg/tsan/AbstractLoop.java
+ test/hotspot/jtreg/tsan/ChildThreadExceptionTest.java
! test/hotspot/jtreg/tsan/TsanRunner.java