Graphs with multibindings look bad

[swankjesse]

We aren't naming the provider methods for multibindings properly, which leads to graphs containing weird nodes like Unbound:java.lang.String. Yuck.

digraph G1 {
  concentrate = true;
  CoffeeApp -> CoffeeMaker;
  CoffeeMaker -> Pump;
  n2 [label="Lazy<coffee.Heater>"];
  CoffeeMaker -> n2;
  Pump -> Thermosiphon;
  n3 [label="Set<java.lang.String>"];
  n4 [label="Unbound:java.lang.String"];
  n3 -> n4;
  n3 -> n4;
  Thermosiphon -> Heater;
}