Revert "Fix Build:  Revert "Implement locale matching in LocalesList.""

This reverts commit 9c2f0d751d16360a2cd857b1db752f0009481b21.

The original commit, 17b2b2d45854b56de7aa6d1581526e45991274d4, had
missed adding api/test-current.txt.

Change-Id: I26a6325b3cee4c2412ee599f002cc6addb35d36f
5 files changed