syntax_data: {"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // Insert a shallow borrow after a deref. For other projections the borrow of
context_before:             if let ProjectionElem::Deref = elem {
context_after:                 // `place_ref` will conflict with any mutation of `place.base`.