Older gcc versions don't support constexpr source location builtins.

Bug: chromium:1056170
Change-Id: I3ef26e62395b1d86f435fb433b429d62a47fa8c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2135737Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67001}