vlib/v/checker/tests/generic_closure_fn_decl_err_b.vv:13:2: error: generic closure fn must specify type parameter, e.g. fn [foo] [T]()
   11 |     println(typeof(my_plugin).name) // MyPlugin
   12 | 
   13 |     fn [my_plugin] () {
      |     ~~~~~~~~~~~~~~~~~~~
   14 |         my_plugin.on_update()
   15 |     }()