syntax_data: {"ast_node_type":"other","tokens":[{"end":108,"kind":"keyword","start":0,"text":"matches!(rhs.kind(),"}]}
source_snippet:                 matches!(rhs.kind(), ty::Slice(rhs_ty) if self.types_may_unify_inner(lhs_ty, rhs_ty, depth))
context_before:             ty::Slice(lhs_ty) => {
context_after:             }