linter rules: Migrate require_trailing_commas tests

Fixes #58524
Fixes #58520
Fixes #58468

Change-Id: I5f353480b7a7c115117d2ff1bf1ca70777355e53
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399621
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Samuel Rawlins <[email protected]>

Author: srawlins