Cherry-pick PR2086 to fix out-of-bound result from Calendar::get()

The bug happen when there are small negative value (between -1e-9 and 0)

https://github.com/unicode-org/icu/pull/2086

Bug: chromium:1279524
Change-Id: I9a7bb5442ad8ece10b90d1b8f1a6d9809977ff4b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/deps/icu/+/3656031
Reviewed-by: Jungshik Shin <jshin@chromium.org>
16 files changed