tree d8f5eb8275cd0072dcffaf3491258e71a2eb335c
parent 199d969cc3d2ddd8bb75c8eb23d1cd7d2371e9e5
author Devin Jeanpierre <jeanpierreda@google.com> 1696278568 -0700
committer Copybara-Service <copybara-worker@google.com> 1696278626 -0700

Prepare `CcBindingsFromRustInfo` for round-tripped interop.

Specifically, allow for multiple headers per crate, and move it to a separate bazel file which we can use from rs_bindings_from_cc.

This doesn't otherwise do anything -- the binary itself will not accept multiple headers until unknown commit is released (it'll just pick one arbitrarily), and we do not actually _populate_ it with multiple headers (and won't until release), but this change is relatively standalone and helps keeps the changelists small.

PiperOrigin-RevId: 570161088
Change-Id: I7c250cc9d3b7b7a32d9097d5db2518e43073b224