syntax_data: {"ast_node_type":"other","tokens":[{"end":17,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// `proc_macro`.
context_before: /// Symbols for crates that are part of the stable standard library: `std`, `core`, `alloc`, and
context_after: pub const STDLIB_STABLE_CRATES: &[Symbol] = &[sym::std, sym::core, sym::alloc, sym::proc_macro];