Fix code comments

theano/gof/vm.py

@@ -891,15 +891,15 @@ class VM_Linker(link.LocalLinker):
 
         thunks = []
 
-        for node in order:
-            idx = order.index(node)
+        for idx in range(order):
+            node = order[idx]
             for ins in node.inputs:
                 if ins.allow_gc and ins.ndim == 0:
                     # check if input variable can be gc and ndim = 0
                     for i in range(idx + 1, len(order)):
                         for outs in order[i].outputs:
-                            if outs.ndim == 0 and outs == ins:
-                                storage_map[outs] == storage_map[ins]
+                            if outs.ndim == 0:
+                                storage_map[outs] = storage_map[ins]
 
         for node in order:
             try: