Roll buildtools/third_party/libunwind/trunk/ 5e737be79..49191c55b (8 commits)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind.git/+log/5e737be79cd2..49191c55bba0

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

Change-Id: Ic3397b25a6ca5a37b07af0d8178110873a1ae119
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/94852
Auto-Submit: Lei Zhang <thestig@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>
Reviewed-by: Nigi <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index 09082ce..0e5ef61 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': '5e737be79cd244af1c36b4cccc0cba4c6a4306a3',
+  'libunwind_revision': '49191c55bba0e64664954eec93a43d8eb11e5798',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling markupsafe
   # and whatever else without interference from each other.