E0422 needs to be updated to new format

[sophiajt]

From: src/test/compile-fail/E0422.rs

E0422 needs a span_label, updating it from:

error[E0422]: `Foo` does not name a structure
  --> src/test/compile-fail/E0422.rs:12:13
   |
12 |     let x = Foo { x: 1, y: 2 }; //~ ERROR E0422
   |             ^^^

To:

error[E0422]: `Foo` does not name a structure
  --> src/test/compile-fail/E0422.rs:12:13
   |
12 |     let x = Foo { x: 1, y: 2 }; //~ ERROR E0422
   |             ^^^ not a structure