Make variadic-class-template work

Author: hlopko

test/Interop/Cxx/templates/Inputs/variadic-class-template.h

@@ -3,14 +3,21 @@
 
 template <class... Ts> struct Tuple {};
 
+template <>
+struct Tuple<> {
+  void set() {}
+};
+
 template <class T, class... Ts>
 struct Tuple<T, Ts...> : Tuple<Ts...> {
-  Tuple(T t, Ts... ts) : Tuple<Ts...>(ts...), t(t) {}
+  Tuple(T t, Ts... ts) : Tuple<Ts...>(ts...), _t(t) {}
+
+  void set(T t, Ts... ts) { _t = t; Tuple<Ts...>::set(ts...); }
 
-  T get() { return t; }
-  T rest() { return Tuple<Ts...>::get(); }
+  T first() { return _t; }
+  Tuple<Ts...> rest() { return *this; }
 
-  T t;
+  T _t;
 };
 
 struct IntWrapper {

test/Interop/Cxx/templates/variadic-class-template.swift

@@ -10,9 +10,15 @@ var TemplatesTestSuite = TestSuite("TemplatesTestSuite")
 TemplatesTestSuite.test("variadic-class-template") {
   let a = IntWrapper(value: 10)
   let b = IntWrapper(value: 20)
-  let pair = Pair(a, b)
-  expectEqual(pair.get(), 10)
-  expectEqual(pair.rest().get(), 20)
+
+  var pair = Pair()
+  pair.set(a, b)
+
+  var pairA = pair.first()
+  var restB = pair.rest()
+  var pairB = restB.first()
+  expectEqual(pairA.getValue(), 10)
+  expectEqual(pairB.getValue(), 20)
 }
 
 runAllTests()