State variables are not interpolated into strings

[snoopyjc]

State variables are not interpolated into strings. For example:

sub banner {
    state $inv = 'inv';
    state $from_fstring = "${inv}x";
    ...
}

$inv is renamed to banner_inv, but that name isn't put into the f-string for the reference.

[snoopyjc]

Fixed in my v0.959: https://github.com/snoopyjc/pythonizer/