src/test/ui/issues/issue-5280.rs

// run-pass
#![allow(dead_code)]

type FontTableTag = u32;

trait FontTableTagConversions {
  fn tag_to_string(self);
}

impl FontTableTagConversions for FontTableTag {
  fn tag_to_string(self) {
    &self;
  }
}

pub fn main() {
    5.tag_to_string();
}