tree a2c430bb22777838ee35e11106f5a7a391a33529
parent ef0adb1275e9af2a23d63fe9dcf048eb28c9ae78
author Elliott Hughes <enh@google.com> 1569460637 -0700
committer Elliott Hughes <enh@google.com> 1569474812 -0700

Add trivial towlower/towupper benchmarks.

Currently 11ns for both ascii and unicode in 64-bit, 15ns for 32-bit.

Test: ran benchmarks
Change-Id: Ie810b324c855b52b66a96889a194bc5b5b55653f