[PRISM] Support repeated required parameter names.
Fixes: https://github.com/ruby/prism/issues/2062
This patch only fixes positional parameters, we still need to fix the other cases spelled out in test/prism/fixtures/repeat_parameters.txt
[PRISM] Support repeated required parameter names.
Fixes: https://github.com/ruby/prism/issues/2062
This patch only fixes positional parameters, we still need to fix the
other cases spelled out in test/prism/fixtures/repeat_parameters.txt