anchor.diff:  	;
   
   graphStmt
  -	:	portAssignment | funcDeclInit | funcDecl | namedRef |NEWLINE
  +	:	portAssignment | funcDeclInit | funcDecl |NEWLINE
   	;
   
   nodeDecl
       :   NODE MFNAME ('[' optionSelector ']')? BEGIN NEWLINE
           nodeStmt
           END
  -    ;
  -
  -namedRef
  -    :   name=IDENT reference
       ;
   
   anonymousRef
  
positive.code: 	;
  
  portstmt	
  	:	( portDeclInit | portDecl | namedRef ) NEWLINE
  	;	
  	
  portName 
  
negative.code:     |   funcDeclInit NEWLINE
      |   funcDecl NEWLINE
      |   anonExpr
      ;
  
  listLiteral
  