syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"ty::Array(rhs_ty,"}]}
source_snippet:                 ty::Array(rhs_ty, rhs_len) => {
context_before:             ty::Array(lhs_ty, lhs_len) => match rhs.kind() {
context_after:                     self.types_may_unify_inner(lhs_ty, rhs_ty, depth)