Make C# Documentation ref parsing more passive

[VISTALL]

 /// <summary>
        /// Executes triggers associated with this artifact <see cref="ArtifactDef"/>
        /// </summary>
        /// <param name="event"> event triggering some triggers </param>  
        /// <param name="phase"> phase when trigger should be invoked </param>
        /// <param name="artifact"> artifact that may trigger events </param>
        /// <param name="output"> accumulator of output physical events </param>
        /// <param name="args"> arguments of event </param>
        /// <returns> true if all triggers were triggered successfully </returns>
        bool executeTriggers(TriggerEvent @event, int phase, Artifact artifact, IList<AbstractPhysicalEvent> output, Args args);