syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // Report by-ref and by-move conflicts, e.g. `ref x @ y`.
context_before:     } else if report_move_conflict {
context_after:         sess.dcx().emit_err(MovedWhileBorrowed { span: pat.span, occurrences });