Not exported SWEP.Weapon, deprecated fields

[TIMONz1535]

I noticed that the field SWEP.Weapon was not exported https://wiki.facepunch.com/gmod/Structures/SWEP#Weapon

Also we can mark ---@type defined fields as deprecated, like self.Owner, self.Weapon, ViewData.orthotop, SoundData.pitchstart
foo.example = nil ---@deprecated also works
LuaLS/lua-language-server#1313 (comment)

but unfortunately, deprecated structure fields on the wiki are warnings or text, not <deprecated>

Changed DEPRECATED tag to Warning since such changes never are going to be removed

it is also possible due to the fact that the entire page may become DEPRECATED (on the left navbar), but this is wrong

https://wiki.facepunch.com/gmod/Enums/TEXTUREFLAGS

Someone probably tried to turn it off <deprecated notag="1">, but it doesn't work.