FW: [11u] RFR/A: 8022574: remove HaltNode code after uncommon trap calls

[Hohensee, Paul]

Original bug: https://bugs.openjdk.java.net/browse/JDK-8022574
Original patch: https://hg.openjdk.java.net/jdk/jdk/rev/08fda454c3df
Webrev: http://cr.openjdk.java.net/~phh/8022574/webrev.11u.00/

This is the last in a series of three of which the first two are

https://bugs.openjdk.java.net/browse/JDK-8225653
https://bugs.openjdk.java.net/browse/JDK-8231720

These apply cleanly and have been tagged jdk11u-fix-request.

The backport patch for JDK-8022574 (this review request) is clean except for the hunk that applies to arm.ad. That hunk had to be slightly modified to account for the fact that Oracle’s arm64 port has not been removed from 11u.

Once/if approved, all three backports will be pushed at once.

Thanks,
Paul