Spans for Paths can be incorrect #39450

macro_rules! impl_format {
    ($symbol:expr, $fmt:ident) => {
        impl<T: fmt::$fmt> fmt::$fmt for Painted<T> {
            fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
                panic!()
            }
        }
    }
}

impl_format!("{}", Display);

   |
9  |           impl<T: fmt::$fmt> fmt::$fmt for Painted<T> {
   |  _________________^ starting here...
10 | |             fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
11 | |                 panic!()
12 | |             }
13 | |         }
14 | |     }
15 | | }
16 | |
17 | | impl_format!("{}", Display);
   | | -------------------------^--
   | |_|________________________|
   |   |                        ...ending here
   |   in this macro invocation