Aliased method for each_index is invalid:

Ref:

• array: https://ruby-doc.org/core-2.7.1/Array.html#method-i-each_index
• enumerable: https://ruby-doc.org/core-2.7.1/Enumerable.html#method-i-each_with_index

What version of protobuf and what language are you using?
Version: master
Language: ruby

What operating system (Linux, Windows, ...) and version?

Docker: ruby:2.7-slim-buster

What runtime / compiler are you using (e.g., python version or gcc version)

N/A

What did you do?
Steps to reproduce the behavior:

1. have a proto with a repeated_field
2. build a ruby library
3. make use of each_index

What did you expect to see

The index of the repeated field.

What did you see instead?

The repeated field's value instead.

Make sure you include information that can help us debug (full error message, exception listing, stack trace, logs).

Anything else we should know about your project / environment

N/A