commit e78b2fb7786b4127b26b073c2f2f4f69c7bb7c9f
author Devin Jeanpierre <jeanpierreda@google.com> Tue Oct 05 11:40:33 2021 +0000
committer Marcel Hlopko <hlopko@google.com> Fri Mar 25 21:55:33 2022 +0000
tree d0c60fc1635a2e5db2fcd3bac81870a95e921bc7
parent 079312716f91e161f6a1fa08d5180b4c5fdb009f

Add trivial destructor flags to the IR.

Actually we don't need this, but I had it written anyway...

At the very least, we can omit calls to the destructor if it's trivial, and have an empty Drop impl. At the *most*, we can omit the Drop impl entirely, but this would mean that adding a nontrivial destructor can trigger dropck in Rust code, and isn't super compatible -- we need to talk about this separately.

In order to walk source files that even *have* destructors defined in them, without crashing, we actually also need to check that the identifier for the function is representable before converting to an Identifier, so we do that also.

PiperOrigin-RevId: 400951408