UPRV_UNREACHABLE called in code that is easily reachable, crashes production code

Description

This is the follow up ticket from:
.

The previous ticket for just for reverting the specific change in u_UCharsToChars().

This ticket is for the broader investigation of use of UPRV_UNREACHABLE.

Status

Assignee

Unassigned

Reporter

Jeff Genovy

Labels

None

Reviewer

None

Time Needed

None

Start date

None

Components

Priority

TBD