--- /dev/null
+0
+1
+2
+0
+1
+Aborted (alt/base_closure_break_default2_alt3.nit:24)
+,---- Stack trace -- - - -
+| base_closure_break_default2_alt3::A::foo (alt/base_closure_break_default2_alt3.nit:20)
+| base_closure_break_default2_alt3::Sys::(kernel::Sys::main) (alt/base_closure_break_default2_alt3.nit:39)
+`------------------- - - -