newproxy has its uses...

["Thiago L." <fakedme@...>]

Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio
> x = newproxy(true)
> = x
userdata: 005CAE68
> = rawget(x,"test")
stdin:1: bad argument #1 to 'rawget' (table expected, got userdata)
stack traceback:
        [C]: in function 'rawget'
        stdin:1: in main chunk
        [C]: ?
> = rawset(x,"test", "test")
stdin:1: bad argument #1 to 'rawset' (table expected, got userdata)
stack traceback:
        [C]: in function 'rawset'
        stdin:1: in main chunk
        [C]: ?
> = getmetatable(x)
table: 005CD330
>

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So can we get newproxy back? (or __rawset/__rawget metafields or something)