[ruby/prism] Correct the "ambiguous first argument" condition
Fix https://github.com/ruby/prism/pull/2182
This change reflects this line: https://github.com/ruby/ruby/blob/6283ae8d369bd2f8a022bb69bc5b742c58529dec/parse.y#L11124.
https://github.com/ruby/prism/commit/a52588ff37
[ruby/prism] Correct the "ambiguous first argument" condition
Fix https://github.com/ruby/prism/pull/2182
This change reflects this line:
https://github.com/ruby/ruby/blob/6283ae8d369bd2f8a022bb69bc5b742c58529dec/parse.y#L11124.
https://github.com/ruby/prism/commit/a52588ff37