syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"this.source_info(this.tcx.hir_span(*hir_id)),"}]}
source_snippet:                             this.source_info(this.tcx.hir_span(*hir_id)),
context_before:                             block,
context_after:                             *cause,