[Libreoffice] What are these /*N*/ comments?

[Kevin Hunter]

Hullo List,

Is there a reason for lines that look like this?

[...]
/*N*/ 	String			aGraphicId( rGraphicId );
/*N*/ 	BfGraphicObject aGrfObject( ByteString( aGraphicId, 
RTL_TEXTENCODING_ASCII_US ) );
/*N*/
/*N*/     maTmp.EnableKillingFile();
/*N*/
/*N*/ 	if( aGrfObject.GetType() != GRAPHIC_NONE )
/*N*/ 	{
[...]

The code is compiled, but what was the initial reason to have them in there?

Kevin