syntax_data: {"ast_node_type":"variable","tokens":[{"end":54,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                         let add_retag = match rvalue {
context_before:                     StatementKind::Assign(box (ref place, ref rvalue)) => {
context_after:                             // Ptr-creating operations already do their own internal retagging, no