Ensure that we don't mark weak heap references in the constant pool array.

src/lithium-codegen.cc

Index: src/lithium-codegen.cc
diff --git a/src/lithium-codegen.cc b/src/lithium-codegen.cc
index be0ff8371afa51ec664d61a3056d2da13ae7ff79..1c7e010fc7402823f08ed0207df4aa1bb88ca78d 100644
--- a/src/lithium-codegen.cc
+++ b/src/lithium-codegen.cc
@@ -176,6 +176,10 @@ void LCodeGenBase::RegisterWeakObjectsInOptimizedCode(Handle<Code> code) {
       }
     }
   }
+  if (FLAG_enable_ool_constant_pool) {
+    code->constant_pool()->set_weak_object_state(
+        ConstantPoolArray::WEAK_OBJECTS_IN_OPTIMIZED_CODE);
+  }
 #ifdef VERIFY_HEAP
   // This disables verification of weak embedded objects after full GC.
   // AddDependentCode can cause a GC, which would observe the state where