syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // Invalid `rustc_mir` attrs are reported in `RustcMirAttrs::parse`
context_before:     let Ok(attrs) = RustcMirAttrs::parse(tcx, def_id) else {
context_after:         return Ok(());