There's at least one case of a time zone alias: Asia/Kathmandu aliases
Asia/Katmandu. ICU seems to normalize to the (deprecated) latter choice.
V8 internationalization choked on this change; this patch interprets
ICU's output more precisely and allows it.

BUG=chromium:487322
R=jungshik,adamk
LOG=Y

Review URL: https://codereview.chromium.org/1509273007

Cr-Commit-Position: refs/heads/master@{#32769}