hg: jdk/jdk: 8203425: assert(is_Loop()) failed: invalid node class

[nils.eliasson at oracle.com]

Changeset: 7b004b4548d8
Author:    neliasso
Date:      2018-06-08 14:50 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/7b004b4548d8

8203425: assert(is_Loop()) failed: invalid node class
Summary: Revert 8203215
Reviewed-by: thartmann

! src/hotspot/share/opto/loopnode.cpp