anchor.diff:  import chameleon.oo.type.generics.SuperWildcard;
   import chameleon.oo.type.inheritance.SubtypeRelation;
   
  -import chameleon.core.variable.Variable;
  -import chameleon.core.variable.FormalParameter;
  -import chameleon.core.variable.VariableDeclaration;
  -import chameleon.core.variable.VariableDeclarator;
  +import chameleon.oo.variable.Variable;
  +import chameleon.oo.variable.FormalParameter;
  +import chameleon.oo.variable.VariableDeclaration;
  +import chameleon.oo.variable.VariableDeclarator;
   
   import chameleon.input.InputProcessor;
   import chameleon.input.Position2D;
  
positive.code: 
  import chameleon.core.element.Element;
  
  import chameleon.core.expression.Expression;
  import chameleon.core.expression.MethodInvocation;
  import chameleon.core.expression.Literal;
  import chameleon.core.expression.Assignable;
  import chameleon.core.expression.NamedTarget;
  import chameleon.core.expression.NamedTargetExpression;
  import chameleon.core.expression.InvocationTarget;
  import chameleon.core.expression.TargetedExpression;
  import chameleon.core.expression.VariableReference;
  
  import chameleon.core.language.Language;
  
  import chameleon.core.member.Member;
  
  import chameleon.core.method.Method;
  import chameleon.core.method.MethodHeader;
  import chameleon.core.method.SimpleNameMethodHeader;
  import chameleon.core.method.Implementation;
  import chameleon.core.method.RegularImplementation;
  
  import chameleon.core.method.exception.ExceptionClause;
  import chameleon.core.method.exception.TypeExceptionDeclaration;
  
  import chameleon.core.modifier.Modifier;
  
  
negative.code: 
  import chameleon.core.compilationunit.CompilationUnit;
  
  import chameleon.oo.member.SimpleNameDeclarationWithParametersSignature;
  import chameleon.oo.member.SimpleNameDeclarationWithParametersHeader;
  import chameleon.core.declaration.SimpleNameSignature;
  import chameleon.core.declaration.Signature;
  import chameleon.core.declaration.QualifiedName;
  