Fix compile in C++20 mode.

Bug: chromium:1284275
Change-Id: I9455b0f874475af83e8f8aca3404e8c84b8c51d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/third_party/libunwindstack/+/3957615
Reviewed-by: Mike Wittman <wittman@chromium.org>
6 files changed