gistfile1.txt

diff --git a/src/vm/jvm/runtime/org/perl6/rakudo/Binder.java b/src/vm/jvm/runtime/org/perl6/rakudo/Binder.java
index 66075c1..c8f3e18 100644
--- a/src/vm/jvm/runtime/org/perl6/rakudo/Binder.java
+++ b/src/vm/jvm/runtime/org/perl6/rakudo/Binder.java
@@ -354,15 +354,10 @@ public final class Binder {

                 /* If the expected type is Positional, see if we need to do the
                  * positional bind failover. */
-                if (nomType == gcx.Positional && arg_o == gcx.PositionalBindFailover) {
-                    SixModelObject HOW = arg_o.st.HOW;
-                    SixModelObject ig = Ops.findmethod(tc, HOW, "cache");
-                    SixModelObject ContextRef = tc.gc.ContextRef;
-                    SixModelObject cc = ContextRef.st.REPR.allocate(tc, ContextRef.st);
-                    ((ContextRefInstance)cc).context = cf;
-                    Ops.invokeDirect(tc, ig, genIns,
-                        new Object[] { HOW, arg_o, cc });
-                    arg_o = Ops.result_o(tc.curFrame);
+                if (nomType == gcx.Positional && Ops.istype_nodecont(arg_o, gcx.PositionalBindFailover, tc) != 0) {
+                    SixModelObject ig = Ops.findmethod(tc, arg_o, "cache");
+                    Ops.invokeDirect(tc, ig, Ops.invocantCallSite, new Object[] { arg_o });
+                    decontValue = Ops.result_o(tc.curFrame);
                 }

                 /* If not, do the check. If the wanted nominal type is Mu, then