hg: jdk/sandbox: 8235729: Shenandoah: Remove useless casting to non-constant

[chris.hegarty at oracle.com]

Changeset: 184d94d22d72
Author:    rkennke
Date:      2019-12-11 16:43 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/184d94d22d72

8235729: Shenandoah: Remove useless casting to non-constant
Reviewed-by: roland

! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
! src/hotspot/share/opto/type.cpp
! src/hotspot/share/opto/type.hpp