rust/tests/ui/symbol-names/verbose.rs

// Regression test for issue #57596, where -Zverbose-internals flag unintentionally
// affected produced symbols making it impossible to link between crates
// with a different value of the flag (for symbols involving generic
// arguments equal to defaults of their respective parameters).
//
//@ build-pass
//@ compile-flags: -Zverbose-internals

pub fn error(msg: String) -> Box<dyn std::error::Error> {
  msg.into()
}

fn main() {
  error(String::new());
}