hg: jdk9/sandbox/hotspot: Fix GCC complaints about uninitialized variables.

[aleksey.shipilev at oracle.com]

Changeset: a70746395386
Author:    shade
Date:      2015-11-17 19:07 +0300
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/a70746395386

Fix GCC complaints about uninitialized variables.

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