tree fdbed361edf5a4920134d861a69b92a9bad13555
parent 13a5f2a375c7d57a5a3bfb3520a55ee831944936
author Anqi Dong <anqid@google.com> 1664413921 +0000
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1664413921 +0000

pw_span: Add IWYU pragma

More context behind what these are:
https://github.com/include-what-you-use/include-what-you-use/blob/master/docs/IWYUPragmas.md

Some projects (including some internal Google infrastructure) use these
pragmas to help surface unused includes. Without this pragma, certain
tooling would believe that all includes to pw_span/span.h were
unnecessary, and/or that pw_span/internal/span_impl.h should instead be
used.

It's likely that other files would also benefit from these pragmas, but
this particular one is currently causing trouble for me.

Change-Id: Ia2de79e6ec8ed356289c809286d73e953fda4506
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/112511
Commit-Queue: Anqi Dong <anqid@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
Pigweed-Auto-Submit: Anqi Dong <anqid@google.com>