tests/ui/macros/macro-missing-fragment-deduplication.rs


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// compile-flags: -Zdeduplicate-diagnostics=yes

macro_rules! m {
    ($name) => {}
    //~^ ERROR missing fragment
    //~| ERROR missing fragment
    //~| WARN this was previously accepted
}

fn main() {
    m!();
    m!();
    m!();
    m!();
}