syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"self.tcx().require_lang_item("}]}
source_snippet:                                 self.tcx().require_lang_item(
context_before:                                 self.tcx(),
context_after:                                     LangItem::BikeshedGuaranteedNoDrop,