`gcinfo` is not defined in standard library

[rhys-vdw]

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Windows

What is the issue affecting?

Libraries

Expected Behaviour

gcinfo ought to exist in Lua 5.1 (although it is deprecated).

https://www.lua.org/manual/5.1/manual.html#7.2

Probably somewhere here?

https://github.com/LuaLS/lua-language-server/blob/802e13ccac1153c32b90e6f203fa482fff7a603e/meta/template/basic.lua#L37-L43

Actual Behaviour

Reproduction steps

1. Set "runtime.version": "Lua 5.1"
2. Write gcinfo
3. See that it is not defined

Additional Notes

No response

Log File

No response