fn expand_doc_expr_via_macro_pipeline<'db>(
expander: &mut DocMacroExpander<'db>,
macro_calls: &mut ThinVec<(AstId<MacroCall>, MacroCallId)>,
expr: Expr,
) -> Option<String>fn expand_doc_expr_via_macro_pipeline<'db>(
expander: &mut DocMacroExpander<'db>,
macro_calls: &mut ThinVec<(AstId<MacroCall>, MacroCallId)>,
expr: Expr,
) -> Option<String>