syntax_data: {"ast_node_type":"function","tokens":[{"end":58,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet: fn extend_cause_with_original_assoc_item_obligation<'tcx>(
context_before: /// the [`GenericArgsRef`] of the projection type are not its identity arguments.
context_after:     tcx: TyCtxt<'tcx>,