fix(diagnostics): fix undocumented method returns never being ignored for missing-export-doc

Author: NathanSnail

script/core/diagnostics/missing-export-doc.lua

@@ -19,7 +19,7 @@ return function (uri, callback)
     guide.eachSourceType(state.ast, 'setfield', function (source)
         await.delay()
         if source.value.type ~= "function" then return end
-        helper.CheckFunctionNamed(source.field[1], source.value, source.value, callback,
+        helper.CheckFunctionNamed(source.field[1], source.value, nil, callback,
             'DIAG_MISSING_EXPORTED_FIELD_DOC_COMMENT',
             'DIAG_MISSING_EXPORTED_FIELD_DOC_PARAM',
             'DIAG_MISSING_EXPORTED_FIELD_DOC_RETURN')

test/diagnostics/missing-export-doc.lua

@@ -35,7 +35,7 @@ end
 TEST [[
 local M = {}
 
-<!M.f1 = function() end!>
+M.f1 = <!function() end!>
 
 ---comment
 M.f1 = function()