EDIT this got 'fixed' on graphclasses, as per answers/comments, so you might not reproduce it, unless you have their earlier database, which is publicly available via sage - http://sagemath.org.
Likely this is technical error in graphclasses or in me.
Appears to me graphclasses claims P=NP.
In Domination perfect we have $\gamma(G)=i(G)$ which implies the complexity of Dominating Set (DS) and Independent Dominating Set (IDS) is the same in subclasses of domination perfect.
In line graphs we have DS NP-complete and IDS Polynomial.
According to the java application of graphclasses, line graphs are domination perfect, one of the reasons is they are claw-free.
Appears to me this implies P=NP.
What is wrong?
Answering vb le question about polynomial IDS on line.
Clicking details recursively, we get: Polynomial on claw-free and the claim without reference on claw-free:
Polynomial On domination perfect graphs, the Independent set and Independent domininating set problems are equivalent.