docs: always wrap events from events_get

src/scripts/elua/apps/docgen/doctree.lua

@@ -195,7 +195,11 @@ M.Class = Node:clone {
     end,
 
     events_get = function(self)
-        return self.class:events_get():to_array()
+        local ret = {}
+        for ev in self.class:events_get() do
+            ret[#ret + 1] = M.Event(ev)
+        end
+        return ret
     end,
 
     c_get_function_name_get = function(self)

src/scripts/elua/apps/docgen/stats.lua

@@ -129,7 +129,7 @@ M.check_class = function(cl)
     end
 
     for i, ev in ipairs(cl:events_get()) do
-        if not ev:documentation_get() then
+        if not ev:doc_get():exists() then
             print_missing(cl:full_name_get() .. "." .. ev:name_get(), "event")
             stat_incr("event", true)
         else

src/scripts/elua/apps/gendoc.lua

@@ -760,7 +760,6 @@ local build_class = function(cl)
     else
         local nt = {}
         for i, ev in ipairs(evs) do
-            ev = dtree.Event(ev)
             local lbuf = writer.Buffer()
             lbuf:write_link(ev:nspaces_get(cl, true), ev:name_get())
             nt[#nt + 1] = {