hg: panama/panama/hotspot: Make vector stores change memory state

[razvan.a.lupusoru at intel.com]

Changeset: 8903f3ded1ea
Author:    Razvan A Lupusoru <razvan.a.lupusoru at intel.com>
Date:      2017-12-07 10:09 -0800
URL:       http://hg.openjdk.java.net/panama/panama/hotspot/rev/8903f3ded1ea

Make vector stores change memory state

To help maintain proper ordering and also prevent weird memory
control being created (also due to fact that VectorBox exposes
a memory projection), simply create a new memory state when
stores are involved.

! src/share/vm/opto/library_call.cpp