More follow-up fixes to r24322.

src/compiler/instruction.cc

Index: src/compiler/instruction.cc
diff --git a/src/compiler/instruction.cc b/src/compiler/instruction.cc
index 3c40ae555eff5dd3b0e36f297ba4419d4900227e..280dd6e7df8e5d5838d4ebb4de31fd3b31af25de 100644
--- a/src/compiler/instruction.cc
+++ b/src/compiler/instruction.cc
@@ -306,7 +306,8 @@ std::ostream& operator<<(std::ostream& os, const Constant& constant) {
     case Constant::kFloat64:
       return os << constant.ToFloat64();
     case Constant::kExternalReference:
-      return os << constant.ToExternalReference().address();
+      return os << static_cast<const void*>(
+                       constant.ToExternalReference().address());
     case Constant::kHeapObject:
       return os << Brief(*constant.ToHeapObject());
   }