Roll buildtools/third_party/libunwind/trunk/ 393e3eee9..5e737be79 (21 commits)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind.git/+log/393e3eee998d..5e737be79cd2

Created with:
  roll-dep buildtools/third_party/libunwind/trunk

Change-Id: I1388443edadc2341c9c6f7494bf994e51d22ccb2
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/94130
Commit-Queue: Nigi <nigi@chromium.org>
Commit-Queue: K. Moon <kmoon@chromium.org>
Auto-Submit: K. Moon <kmoon@chromium.org>
Reviewed-by: Nigi <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index cd7974f..1d560b9 100644
--- a/DEPS
+++ b/DEPS
@@ -107,7 +107,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libunwind
   # and whatever else without interference from each other.
-  'libunwind_revision': '393e3eee998d163753894939ab574dc57b08c7f3',
+  'libunwind_revision': '5e737be79cd244af1c36b4cccc0cba4c6a4306a3',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling markupsafe
   # and whatever else without interference from each other.