Fixed interface regexp so that it doesn't take definitions in comments (such as https://github.com/golang/go/blob/go1.5/src/go/types/predicates.go#L223)
Fixed interface regexp so that it doesn't take definitions in comments (such as https://github.com/golang/go/blob/go1.5/src/go/types/predicates.go#L223)

c4s4/gointerfaces,tjyang/gointerfaces