[1.11>master] [MERGE #6040 @meg-gupta] Fix for SWB build break on Linux

Merge pull request #6040 from meg-gupta:fixswb

Author: Meghana Gupta

lib/Runtime/Types/DeferredTypeHandler.h

@@ -150,7 +150,7 @@ namespace Js
     private:
         static DeferredTypeHandler defaultInstance;
 
-        DeferredTypeInitializer m_initializer;
+        FieldNoBarrier(DeferredTypeInitializer) m_initializer;
 
         bool EnsureObjectReady(DynamicObject* instance, DeferredInitializeMode mode);
         virtual BOOL FreezeImpl(DynamicObject *instance, bool isConvertedType) override;

lib/Runtime/Types/NullTypeHandler.h

@@ -19,7 +19,7 @@ namespace Js
 
         DEFINE_VTABLE_CTOR_NO_REGISTER(NullTypeHandlerBase, DynamicTypeHandler);
 
-        bool isPrototype;
+        FieldNoBarrier(bool) isPrototype;
 
     public:
         DEFINE_GETCPPNAME();