syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     ///         f(); // `f`'s `SyntaxContext` has a mark from `m` and a mark from `n`
context_before:     ///         use foo::*;
context_after:     ///         //^ `glob_adjust` removes the mark from `n`, so this resolves to `foo::f`.