syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// - Paths (e.g. `FOO`, `foo::BAR`, `Option::None`)
context_before:     /// Lowers the kinds of "expression" that can appear in a HIR pattern:
context_after:     /// - Inline const blocks (e.g. `const { 1 + 1 }`)