[Bug] getvariable operator does not allow to read the definition of a function

[pmario]

Currently there is no way to dynamically read the definition of a function. eg:

The following code:

\procedure proc()
some text

asdf
\end

\function fn() [<proc>]

\function getProcText() [[proc]getvariable[]]
\function getFnText() [[fn]getvariable[]]

<pre><<getProcText>></pre>

<pre><<getFnText>></pre>

does this

What I request is this: