Unbust build after recent World changes.

src/Perl6/Actions.nqp

@@ -366,6 +366,9 @@ class Perl6::Actions is HLL::Actions does STDActions {
         $compunit<UNIT>      := $unit;
         $compunit<GLOBALish> := $*GLOBALish;
         $compunit<W>         := $*W;
+
+        # Do any final compiler state cleanup tasks.
+        $*W.cleanup();
 
         make $compunit;
     }

src/Perl6/World.nqp

@@ -1750,13 +1750,16 @@ class Perl6::World is HLL::World {
         }
     }
 
-    # Runs the CHECK phasers and twiddles the QAST to look them up. Also
-    # runs any other cleanup tasks.
+    # Runs the CHECK phasers and twiddles the QAST to look them up.
     method CHECK() {
         for @!CHECKs {
             my $result := $_[0]();
             $_[1][0] := self.add_constant_folded_result($result);
         }
+    }
+
+    # Does any cleanups needed after compilation.
+    method cleanup() {
         for @!cleanup_tasks { $_() }
     }