syntax_data: {"ast_node_type":"other","tokens":[{"end":7,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     ///
context_before:     /// N.B. when *using* the compiler, backend can always be overridden with `-Zcodegen-backend`.
context_after:     /// This was added by WaffleLapkin in #116793. The motivation is a rustc fork that requires a