Fixed compile error.

Signed-off-by: Mike Balfour <82224783+mbalfour-amzn@users.noreply.github.com>

Code/Framework/AzCore/Tests/Serialization/Json/TestCases_TypeId.cpp

@@ -74,6 +74,11 @@ namespace AZ
         {
             return GetCurrentSerializeContextModule().CreateGenericClassInfo<ThisType>();
         }
+
+        static const Uuid& GetClassTypeId()
+        {
+            return GetGenericInfo()->GetClassData()->m_typeId;
+        }
     };
 } // namespace AZ