replaceAllTmpVarNames
import { replaceAllTmpVarNames } from "https://raw.githubusercontent.com/Hatscat/MetavaScript/main/index.ts";
post process function to replace all temporary variables names by the shortest names possible, the most used ones are the shortest (1 character)
function replaceAllTmpVarNames(sourceCode: string, unavailableCharacters?: string[]): string;