syntax_data: {"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Invariant: for any place in `fake_borrows`, all the prefixes of this place that are
context_before:     /// borrow (i.e. Deep > Shallow).
context_after:     /// dereferences are also borrowed with the same of stronger borrow kind.