tree 863d404fdd3d4ae2edfae9b1a509e74bb3498d3b
parent 0064e4c7e83cc01cc415ec2694d067fbd83a5b2b
author bnc <bnc@google.com> 1580840472 -0800
committer Copybara-Service <copybara-worker@google.com> 1580840509 -0800

Remove IntervalItem from anonymous namespace.

This way it will get external linkage, eliminating linker errors on Windows.

Also rename to TestIntervalItem to reduce change of future namespace collisions.

gfe-relnote: n/a, test-only change.
PiperOrigin-RevId: 293174367
Change-Id: I37ce00b342a9bb4cee812ebb989d79580bfc08aa