syntax_data: {"ast_node_type":"function","tokens":[{"end":76,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn register_place(&mut self, place: Place<'tcx>) -> Option<PlaceIndex> {
context_before:     #[tracing::instrument(level = "trace", skip(self))]
context_after:         // Create a place for this projection.