Function get_binder_info

fn get_binder_info<'a>(
    macros: &'a Stack<'a, MacroState<'a>>,
    binders: &'a FxHashMap<MacroRulesNormalizedIdent, BinderInfo>,
    name: MacroRulesNormalizedIdent,
) -> Option<&'a BinderInfo>

Returns the binder information of a meta-variable.

Arguments:

• macros is the stack of possible outer macros
• binders contains the current binders
• name is the name of the meta-variable we are looking for