Mike Kestner
aae2b05300
Implement IEquatable<T> on structs.
* gdk/Gdk.metadata: suppress Color.GetHashCode().
* gdk/Point.custom: remove generated methods.
* generator/StructBase.cs: Generate Equals(T), Equals(object), and GetHashCode.
* generator/StructField.cs: helper property for equality testing.
* gtk/TreeIter.custom: remove generated methods.