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](){ my_plugin.on_update() }()
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   14 | }
   15 |
vlib/v/checker/tests/generic_closure_fn_decl_err_b.vv:13:29: error: unknown method or field: `T.on_update`
   11 |     println(typeof(my_plugin).name) // MyPlugin
   12 | 
   13 |     fn[my_plugin](){ my_plugin.on_update() }()
      |                                ~~~~~~~~~~~
   14 | }
   15 |
