Index: tests/concurrent/actors/dynamic.cfa
===================================================================
--- tests/concurrent/actors/dynamic.cfa	(revision ccf1d99df078e5cc6368103c1e9c843974c335d9)
+++ tests/concurrent/actors/dynamic.cfa	(revision 2856044a458ffcb609400db7e869d2a1b0030058)
@@ -33,5 +33,5 @@
     derived_actor * d_actor = alloc();
     (*d_actor){};
-    *d_actor | *d_msg;
+    *d_actor << *d_msg;
     return Delete;
 }
@@ -63,5 +63,5 @@
     derived_actor * d_actor = alloc();
     (*d_actor){};
-    *d_actor | *d_msg;
+    *d_actor << *d_msg;
 
     printf("stopping\n");
Index: tests/concurrent/actors/executor.cfa
===================================================================
--- tests/concurrent/actors/executor.cfa	(revision ccf1d99df078e5cc6368103c1e9c843974c335d9)
+++ tests/concurrent/actors/executor.cfa	(revision 2856044a458ffcb609400db7e869d2a1b0030058)
@@ -30,5 +30,5 @@
     if ( recs % Batch == 0 ) {
         for ( i; Batch ) {
-            gstart[sends % Set] | shared_msg;
+            gstart[sends % Set] << shared_msg;
             sends += 1;
         }
@@ -97,5 +97,5 @@
 
 	for ( i; Actors ) {
-		actors[i] | shared_msg;
+		actors[i] << shared_msg;
 	} // for
 
Index: tests/concurrent/actors/matrix.cfa
===================================================================
--- tests/concurrent/actors/matrix.cfa	(revision ccf1d99df078e5cc6368103c1e9c843974c335d9)
+++ tests/concurrent/actors/matrix.cfa	(revision 2856044a458ffcb609400db7e869d2a1b0030058)
@@ -21,5 +21,5 @@
 void ?{}( derived_msg & this ) {}
 void ?{}( derived_msg & this, int * Z, int * X, int ** Y ) {
-    ((message &) this){ Finished };
+    ((message &) this){ Nodelete };
     this.Z = Z;
     this.X = X;
@@ -108,5 +108,5 @@
 
 	for ( unsigned int r = 0; r < xr; r += 1 ) {
-		actors[r] | messages[r];
+		actors[r] << messages[r];
 	} // for
 
Index: tests/concurrent/actors/pingpong.cfa
===================================================================
--- tests/concurrent/actors/pingpong.cfa	(revision ccf1d99df078e5cc6368103c1e9c843974c335d9)
+++ tests/concurrent/actors/pingpong.cfa	(revision 2856044a458ffcb609400db7e869d2a1b0030058)
@@ -32,5 +32,5 @@
     Allocation retval = Nodelete;
     if ( msg.count == times ) retval = Finished;
-    *po | msg;
+    *po << msg;
     return retval;
 }
@@ -42,5 +42,5 @@
     Allocation retval = Nodelete;
     if ( msg.count == times ) retval = Finished;
-    *pi | msg;
+    *pi << msg;
     return retval;
 }
@@ -60,5 +60,5 @@
     pi = &pi_actor;
     p_msg m;
-    pi_actor | m;
+    pi_actor << m;
     stop_actor_system();
 
Index: tests/concurrent/actors/static.cfa
===================================================================
--- tests/concurrent/actors/static.cfa	(revision ccf1d99df078e5cc6368103c1e9c843974c335d9)
+++ tests/concurrent/actors/static.cfa	(revision 2856044a458ffcb609400db7e869d2a1b0030058)
@@ -30,5 +30,5 @@
     }
     msg.cnt++;
-    receiver | msg;
+    receiver << msg;
     return Nodelete;
 }
@@ -60,5 +60,5 @@
     derived_actor actor;
 
-    actor | msg;
+    actor << msg;
 
     printf("stopping\n");
Index: tests/concurrent/actors/types.cfa
===================================================================
--- tests/concurrent/actors/types.cfa	(revision ccf1d99df078e5cc6368103c1e9c843974c335d9)
+++ tests/concurrent/actors/types.cfa	(revision 2856044a458ffcb609400db7e869d2a1b0030058)
@@ -78,5 +78,5 @@
     b.num = 1;
     c.num = 2;
-    a | b | c;
+    a << b << c;
     stop_actor_system();
 
@@ -86,6 +86,6 @@
     d_msg d_ac2_msg;
     d_ac2_msg.num = 3;
-    d_ac2_0 | d_ac2_msg;
-    d_ac2_1 | d_ac2_msg;
+    d_ac2_0 << d_ac2_msg;
+    d_ac2_1 << d_ac2_msg;
     stop_actor_system();
 
@@ -99,6 +99,6 @@
         d_msg d_ac23_msg;
         d_ac23_msg.num = 4;
-        d_ac3_0 | d_ac23_msg;
-        d_ac2_2 | d_ac23_msg;
+        d_ac3_0 << d_ac23_msg;
+        d_ac2_2 << d_ac23_msg;
         stop_actor_system();
     } // RAII to clean up executor
@@ -113,5 +113,5 @@
         b1.num = -1;
         c2.num = 5;
-        a3 | b1 | c2;
+        a3 << b1 << c2;
         stop_actor_system();
     } // RAII to clean up executor