1 files changed, 7 insertions, 2 deletions
diff --git a/include/clang/AST/UnresolvedSet.h b/include/clang/AST/UnresolvedSet.h
index 26ee1cf71c813..c1be2aa0f2013 100644
--- a/include/clang/AST/UnresolvedSet.h
+++ b/include/clang/AST/UnresolvedSet.h
@@ -59,8 +59,13 @@ class UnresolvedSetImpl {
   // UnresolvedSet.
 private:
   template <unsigned N> friend class UnresolvedSet;
-  UnresolvedSetImpl() {}
-  UnresolvedSetImpl(const UnresolvedSetImpl &) {}
+  UnresolvedSetImpl() = default;
+  UnresolvedSetImpl(const UnresolvedSetImpl &) = default;
+  UnresolvedSetImpl &operator=(const UnresolvedSetImpl &) = default;
+
+  // FIXME: Switch these to "= default" once MSVC supports generating move ops
+  UnresolvedSetImpl(UnresolvedSetImpl &&) {}
+  UnresolvedSetImpl &operator=(UnresolvedSetImpl &&) { return *this; }
 
 public:
   // We don't currently support assignment through this iterator, so we might