nitcc: fix `Automaton::trim`

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/contrib/nitcc/src/autom.nit b/contrib/nitcc/src/autom.nit
index dd57b52..ac69b3b 100644 (file)
--- a/contrib/nitcc/src/autom.nit
+++ b/contrib/nitcc/src/autom.nit
@@ -360,8 +360,8 @@ class Automaton
 
                # Remove their transitions
                for s in bads do
-                       for t in s.ins do t.delete
-                       for t in s.outs do t.delete
+                       for t in s.ins.to_a do t.delete
+                       for t in s.outs.to_a do t.delete
                end
 
                # Keep only the good stuff