performance improvement for collateStrings
performance improvement for collateStrings


Former-commit-id: 75789f0891759c7736803dcdd37d78d023f0480d [formerly 1e946ed9e083b24b59426ca5c7f015fd58b08df2]
Former-commit-id: b5ce824e0373cc0c3440caec18aae559cab5666a
andrewplummer/Sugar,andrewplummer/Sugar,romancow/Sugar,romancow/Sugar