hg: jdk/hs: 7127700: G1: Replace G1PLAB with PLAB

[thomas.schatzl at oracle.com]

Changeset: 7e09b699f7b6
Author:    tschatzl
Date:      2018-02-13 16:13 +0100
URL:       http://hg.openjdk.java.net/jdk/hs/rev/7e09b699f7b6

7127700: G1: Replace G1PLAB with PLAB
Reviewed-by: sjohanss, kbarrett

! src/hotspot/share/gc/g1/g1Allocator.cpp
! src/hotspot/share/gc/g1/g1Allocator.hpp
! src/hotspot/share/gc/g1/g1Allocator.inline.hpp
! src/hotspot/share/gc/g1/g1ParScanThreadState.cpp
! src/hotspot/share/gc/shared/plab.hpp