Index: tests/concurrency/waituntil/channel_zero_size.cfa
===================================================================
--- tests/concurrency/waituntil/channel_zero_size.cfa	(revision ec2222049a9fca3d80799f50564f03f551e6255d)
+++ tests/concurrency/waituntil/channel_zero_size.cfa	(revision 10b5970650e2ff3d8e757dd5c91889d466e44fe0)
@@ -9,5 +9,5 @@
 
 thread Server1 {};
-void main( Server1 & this ) {
+void main( Server1 & ) {
     long long int a, b, c, i = 0, myTotal = 0;
     for( ;;i++ ) {
Index: tests/concurrency/waituntil/one_chan.cfa
===================================================================
--- tests/concurrency/waituntil/one_chan.cfa	(revision ec2222049a9fca3d80799f50564f03f551e6255d)
+++ tests/concurrency/waituntil/one_chan.cfa	(revision 10b5970650e2ff3d8e757dd5c91889d466e44fe0)
@@ -9,5 +9,5 @@
 
 thread Server1 {};
-void main( Server1 & this ) {
+void main( Server1 & ) {
     long long int c, i = 0, myTotal = 0;
     for( ;;i++ ) {