Roll libcxxabi from e112e5ec5b5a to b6827864154d (1 revision)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi.git/+log/e112e5ec5b5a..b6827864154d

2022-05-16 ldionne.2@gmail.com [runtimes] Introduce object libraries

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/libcxxabi-chromium
Please CC hans@chromium.org,thakis@chromium.org on the revert to ensure that a human
is aware of the problem.

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Tbr: hans@chromium.org,thakis@chromium.org
Change-Id: Id4e91ca38eb58337d19473f5b51e1b28977070c5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3651243
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1003975}

DEPS

@@ -428,7 +428,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'libcxxabi_revision':    'e112e5ec5b5a036c85e4a375290ca15620243853',
+  'libcxxabi_revision':    'b6827864154d1c622a869912bf93bdd5de5b930e',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.