syntax_data: {"ast_node_type":"other","tokens":[{"end":5,"kind":"keyword","start":0,"text":"where"}]}
source_snippet: where
context_before: impl<Infcx, I> PredicateEmittingRelation<Infcx> for SolverRelating<'_, Infcx, I>
context_after:     Infcx: InferCtxtLike<Interner = I>,