The reproducers currently only shadow the command interpreter. It would
be possible to make it work for the Lua interpreter which uses the
IOHandlerEditline under the hood, but the Python one runs a REPL in
Python itself so there's no (straightforward) way to shadow that.
Given that we already capture any API calls, this isn't super high on my
list of priorities.
This ensures that breakpoint command honors the scripting language
passed with `-s`. Currently the argument ignores the actual language and
only uses it to differentiate between lldb and script commands.