Interpolación de Cadenas

https://craftinginterpreters.com/scanning-on-demand.html#challenges

Algo muy util que le esta faltando a Lox es una manera de poder interpolar valores dentro de cadenas, lo cual sirve para poder tener mensajes mucho más descriptivos

Start with the linked Scanning on Demand challenge and review how the Lox interpreter currently handles strings. Define the interpolation behavior from the issue examples, then trace the relevant scanning, parsing, and evaluation entry points; done means values can be embedded in strings to produce more descriptive messages.

Written by the indexing model from the issue text.