public void accept(@NotNull PsiElementVisitor visitor) {
   if (visitor instanceof ApexVisitor) ((ApexVisitor) visitor).visitInterfaceDeclaration(this);
   else super.accept(visitor);
 }
 public void accept(@NotNull PsiElementVisitor visitor) {
   if (visitor instanceof ApexVisitor)
     ((ApexVisitor) visitor).visitBitwiseShiftRightExpression(this);
   else super.accept(visitor);
 }
 public void accept(@NotNull PsiElementVisitor visitor) {
   if (visitor instanceof ApexVisitor) ((ApexVisitor) visitor).visitStatement(this);
   else super.accept(visitor);
 }