Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850

mcs/class/corlib/System.Diagnostics.Tracing/EventSource.cs

@@ -256,6 +256,7 @@ namespace System.Diagnostics.Tracing
 			WriteEvent (eventId, new object[] { arg1, arg2, arg3 } );
 		}
 
+		[CLSCompliant (false)]
 		protected unsafe void WriteEventCore (int eventId, int eventDataCount, EventData* data)
 		{
 		}
@@ -264,6 +265,7 @@ namespace System.Diagnostics.Tracing
 		{
 		}
 
+		[CLSCompliant (false)]
 		protected unsafe void WriteEventWithRelatedActivityIdCore (int eventId, Guid* relatedActivityId, int eventDataCount, EventSource.EventData* data)
 		{
 		}