Function rustc_expand::base::pretty_printing_compatibility_hack

fn pretty_printing_compatibility_hack(item: &Item, sess: &Session) -> bool

This nonterminal looks like some specific enums from proc-macro-hack and procedural-masquerade crates. We need to maintain some special pretty-printing behavior for them due to incorrect asserts in old versions of those crates and their wide use in the ecosystem. See issue #73345 for more details. FIXME(#73933): Remove this eventually.