This API is the new public one added in ICU 69.1
in https://github.com/unicode-org/icu/pull/1610

Bug: v8:11512
Change-Id: I424e15e6a60edee7c98e6ce55974986f0bb6ab1b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2876368
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74428}