{"ast_node_type":"other","tokens":[{"end":33,"kind":"keyword","start":0,"text":"ecx:"}]}
    ecx: &'a mut EvalCtxt<'b, D>,
struct FindParamInClause<'a, 'b, D: SolverDelegate<Interner = I>, I: Interner> {
    param_env: I::ParamEnv,