Stop casting away const qualifier needlessly.

llvm-svn: 163258
diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index f83cdfb..181e09e 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -368,7 +368,7 @@
   report(msg, MBB->getParent());
   *OS << "- basic block: BB#" << MBB->getNumber()
       << ' ' << MBB->getName()
-      << " (" << (void*)MBB << ')';
+      << " (" << (const void*)MBB << ')';
   if (Indexes)
     *OS << " [" << Indexes->getMBBStartIdx(MBB)
         << ';' <<  Indexes->getMBBEndIdx(MBB) << ')';