Map<String, String>
friendlyNames =
const {"[]" : "get", "[]=" : "put", "~" : "bitwise_negate", "==" : "equals", "-" : "minus", "+" : "plus", "*" : "multiply", "/" : "divide", "<" : "less", ">" : "greater", ">=" : "greater_equal", "<=" : "less_equal", "<<" : "shift_left", ">>" : "shift_right", "^" : "bitwise_exclusive_or", "unary-" : "unary_minus", "|" : "bitwise_or", "&" : "bitwise_and", "~/" : "truncate_divide", "%" : "modulo"}