syntax_data: {"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":".erase_regions(ty::GenericArgs::identity_for_item(self.tcx,"}]}
source_snippet:                     .erase_regions(ty::GenericArgs::identity_for_item(self.tcx, impl_def_id))
context_before:                     .tcx
context_after:                     .as_slice()