class Svc  :2-15
  func nestedDefault(a, b) → Int  :3-3
  func closureParam(cb, n) → Int  :6-6
  func deepGenerics(m) → Int  :9-9
  func stringDelims(sep) → String  :12-12
class Outer  :18-24
  func before(a) → Int  :19-19
  func after(c) → Int  :23-23
class Inner  :20-22
  func handle(b) → Int  :21-21
