anchor.diff:      ;
   
   namespaceDeclaration
  -    : Namespace (namespaceNameList? OpenCurlyBracket namespaceStatement* '}' | namespaceNameList SemiColon)
  +    : Namespace (namespaceNameList? OpenCurlyBracket namespaceStatement* CloseCurlyBracket | namespaceNameList SemiColon)
       ;
   
   namespaceStatement
  
positive.code:     ;
  
  blockStatement
      : OpenCurlyBracket innerStatementList '}'
      ;
  
  ifStatement
  
negative.code: 
  traitAdaptations
      : SemiColon
      | OpenCurlyBracket traitAdaptationStatement* CloseCurlyBracket
      ;
  
  traitAdaptationStatement
  