Fix another literal killing bug

library/inference/kill-literals.factor

@@ -76,7 +76,7 @@ M: #killable live-values* ( node -- seq ) drop { } ;
 ! #label
 M: #label live-values* ( node -- seq )
     dup node-child node-in-d over node-in-d 2array
-    rot collect-recursion append purge-invariants ;
+    swap collect-recursion append purge-invariants ;
 
 ! branching
 UNION: #branch #if #dispatch ;

library/inference/optimizer.factor

@@ -25,12 +25,9 @@ DEFER: optimize-node
         over set-node-successor r> r> r> or or
     ] [ r> ] if ;
 
-: (optimize) ( dataflow n -- dataflow n ? )
-    >r dup kill-values dup infer-classes optimize-node r> swap
-    [ 1+ (optimize) ] when ;
-
 : optimize ( dataflow -- dataflow )
-    1 (optimize) [ "! Optimizer passes: " % # ] "" make print ;
+    dup kill-values dup infer-classes optimize-node
+    [ optimize ] when ;
 
 : prune-if ( node quot -- successor/t )
     over >r call [ r> node-successor ] [ r> drop t ] if ;
@@ -39,8 +36,7 @@ DEFER: optimize-node
 ! Generic nodes
 M: f optimize-node* drop t ;
 
-M: node optimize-node* ( node -- t )
-    drop t ;
+M: node optimize-node* ( node -- t ) drop t ;
 
 ! #shuffle
 : can-compose? ( shuffle -- ? )

library/test/compiler/optimizer.factor

@@ -1,8 +1,8 @@
+IN: temporary
 USING: arrays assembler compiler compiler-backend generic
 hashtables inference kernel kernel-internals lists math
 optimizer prettyprint sequences strings test vectors words
 sequences-internals ;
-IN: temporary
 
 : kill-1
     [ 1 2 3 ] [ + ] over drop drop ; compiled