Index: tests/concurrent/.expect/ctor-check.txt
===================================================================
--- tests/concurrent/.expect/ctor-check.txt	(revision 0fc91db1cac2084b1fb6e4b5d1e0fb31c7a12257)
+++ tests/concurrent/.expect/ctor-check.txt	(revision ef1da0e2df5a222ca4e50f7e06a2b61f8ba6efcd)
@@ -2,5 +2,5 @@
 ?{}: function
 ... with parameters
-  this: lvalue reference to instance of struct Empty with body
+  this: mutex reference to instance of struct Empty with body
 ... returning nothing
  with body