macro_rules! provide {
($tcx:ident, $def_id:ident, $other:ident, $cdata:ident,
$($name:ident => { $($compute:tt)* })*) => { ... };
}
macro_rules! provide {
($tcx:ident, $def_id:ident, $other:ident, $cdata:ident,
$($name:ident => { $($compute:tt)* })*) => { ... };
}