syntax_data: {"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"this.tcx.dcx().emit_fatal(LoopMatchUnsupportedType"}]}
source_snippet:                     this.tcx.dcx().emit_fatal(LoopMatchUnsupportedType { span, ty: state_ty })
context_before:                     let span = this.thir.exprs[state].span;
context_after:                 }