Comment # 30 on bug 90887 from jr

(In reply to Ilia Mirkin from comment #29)
> Hmmmm... maybe it was one of my local patches? I'll try to figure out what
> went wrong later tonight.
> 
> I added logic to be clever about edge types... when splitting an edge, the
> type should remain except a forward edge becomes a cross edge. (You can do
> it out on paper...) Perhaps that upset things? It doesn't seem like codegen
> is using those terms in the usual MST meanings :(

I did take a look at the edge classification. Cannot say I fully understand the
implications yet, but I'm wondering whether the logic in Graph::classifyDFS is
correct. Shouldn't the condition for FORWARD edge whenn looping over incoming
edges (the second loop) be reversed?