[8u60] Request for approval: 8077256: Refactor VM GC operations caused by allocation failure

[Marcus Larsson]

Hi,

Please approve the following backport.
The backport applies cleanly after the backport "8077249: Clean up 
around VM_GC_Operations" [1] has been applied.

Issue:
https://bugs.openjdk.java.net/browse/JDK-8077256

JDK9 fix:
http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/ad8ac65b4d77

Backport webrev:
http://cr.openjdk.java.net/~mlarsson/8077256/webrev.00

Thanks,
Marcus

[1]: http://mail.openjdk.java.net/pipermail/jdk8u-dev/2015-April/003357.html