#1208 fix runtime error

`attempt to concatenate a boolean value (local 'lastKey')`

Author: sumneko

Diff for: changelog.md

@@ -11,7 +11,7 @@
 * `FIX` with clients that support LSP 3.17 (VSCode), workspace diagnostics are triggered every time when opening a file.
 * `FIX` [#1204](https://github.com/sumneko/lua-language-server/issues/1204)
 
-## 3.2.51204
+## 3.2.5
 `2022-6-9`
 * `NEW` provide config docs in `LUA_LANGUAGE_SERVER/doc/`
 * `FIX` [#1148](https://github.com/sumneko/lua-language-server/issues/1148)

Diff for: script/vm/def.lua

@@ -85,7 +85,7 @@ local nodeSwitch;nodeSwitch = util.switch()
         local parentNode = vm.compileNode(source.node)
         local uri = guide.getUri(source)
         local key = guide.getKeyName(source)
-        if not key then
+        if type(key) ~= 'string' then
             return
         end
         if lastKey then