syntax_data: {"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"rvalue"}]}
source_snippet:                 rvalue
context_before:             && let mir::Rvalue::Ref(_, mir::BorrowKind::Fake(mir::FakeBorrowKind::Shallow), place) =
context_after:             && let mir::PlaceRef {