syntax_data: {"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // Fake borrow this place and its dereference prefixes.
context_before: impl<'a, 'b, 'tcx> FakeBorrowCollector<'a, 'b, 'tcx> {
context_after:     fn fake_borrow(&mut self, place: Place<'tcx>, kind: FakeBorrowKind) {