[8u-dev] RFA (XS): JDK-8211394: CHECK_ must be used in the rhs of an assignment statement within a block

[Hohensee, Paul]

Please approve a trivial backport of JDK-8211394 to 8u.

JBS: https://bugs.openjdk.java.net/browse/JDK-8211394
Webrev: http://cr.openjdk.java.net/~phh/8211394/webrev.00/
Review thread: http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2018-October/030376.html

The patch applies cleanly net of line numbers, copyright notice dates, and code that exists in JDK9 but not in JDK8. The result is a one line change and a new comment.

It builds and runs jdk8 hotspot jtreg test on a linux x64 host. If needed, would someone please run it through jprt?

Thanks,

Paul