Fix icu_uregex_open_fuzzer: ASSERT: loc < end

Bug: 1175469
Change-Id: Ie6cff230f89f54ef79192d53b8b2f66ff76be1a0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/deps/icu/+/2702525
Reviewed-by: Jungshik Shin <jshin@chromium.org>
3 files changed