[8u60] Backport RFR: 8066763: fatal error "assert(false) failed: unexpected yanked node" in postaloc.cpp:139

[Tobias Hartmann]

Hi,

please review the following backport request for 8u60.

8066763: fatal error "assert(false) failed: unexpected yanked node" in
postaloc.cpp:139
https://bugs.openjdk.java.net/browse/JDK-8066763
http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/f1cb27c85c83

The changes were pushed to JDK 9 on Dec 12 and nightly testing showed no
problems. The patch applies cleanly to 8u60.

Thanks,
Tobias