I don't have access to Bard. I'm skeptical that's a valid approach. Language models are famously incapable of introspection. Does it change the answer if you tell it it's wrong, for example?

I asked and was able to get it to tell me:

C++

Go

Java

JavaScript

Python

TypeScript

Google Sheets functions

C

C#

R

Swift

Kotlin

PHP

HTML

CSS

SQL

Bash

Perl

Ruby

Lua

Rust