syntax_data: {"ast_node_type":"other","tokens":[{"end":7,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     ///
context_before:     /// can be converted to `ReLateParam` by calling `tcx.liberate_late_bound_regions`.
context_after:     /// Bound regions inside of types **must not** be erased, as they impact trait