New Issue: Should the type 'codepointIndex' be deprecated?

18265, "arezaii", "Should the type 'codepointIndex' be deprecated?", "2021-08-20T00:25:36Z"

During module review we decided to explore the impact of removing the codepointIndex type.

This type is used within the string module, and string documentation indicates that:

Passing a codepointIndex has the same behavior as passing an integral type. See this for an example.

We would like to open discussion W.R.T removing codepointIndex and simply using integral types for most cases, or byteIndex if speed is the primary concern.

Are you using codepointIndex in your code? Would you notice or care if it went away?