Use a WeakCell in the CallIC type vector.

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index ed4b065efad25123fe081ad40847db3b36213341..aa621223cf5a5feb145838f8814e6de1efa7833d 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -6227,6 +6227,10 @@ class HObjectAccess FINAL {
     return HObjectAccess(kInobject, WeakCell::kValueOffset);
   }
 
+  static HObjectAccess ForWeakCellNext() {
+    return HObjectAccess(kInobject, WeakCell::kNextOffset);
+  }
+
   static HObjectAccess ForAllocationMementoSite() {
     return HObjectAccess(kInobject, AllocationMemento::kAllocationSiteOffset);
   }