{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"///"}]}
/// an item bound on the GAT, where all of the GAT args are substituted with the GAT's
/// like `for<'a, ...> Self::Assoc<'a, ...>: Bound<'b, ...>`, we want to turn that into
/// param regions, and then keep all of the other late-bound vars in the bound around.