E0164 needs to be updated to new format

[sophiajt]

From: src/test/compile-fail/E0164.rs

Error E0164 needs a span_label, updating it from:

error[E0164]: `Foo::B` does not name a tuple variant or a tuple struct
  --> src/test/compile-fail/E0164.rs:15:9
   |
15 |         Foo::B(i) => i, //~ ERROR E0164
   |         ^^^^^^^^^

To:

error[E0164]: `Foo::B` does not name a tuple variant or a tuple struct
  --> src/test/compile-fail/E0164.rs:15:9
   |
15 |         Foo::B(i) => i, //~ ERROR E0164
   |         ^^^^^^^^^ not a tuple variant or struct