test usage

Author: lcnr

src/test/ui/const-generics/argument_order.rs

@@ -13,4 +13,7 @@ struct AlsoBad<const N: usize, 'a, T, 'b, const M: usize, U> {
     b: &'b U,
 }
 
-fn main() { }
+fn main() {
+    let _: AlsoBad<7, 'static, u32, 'static, 17, u16>;
+    //~^ ERROR lifetime provided when a type was expected
+ }

src/test/ui/const-generics/argument_order.stderr

@@ -25,5 +25,15 @@ LL | #![feature(const_generics)]
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
-error: aborting due to 3 previous errors; 1 warning emitted
+error[E0747]: lifetime provided when a type was expected
+  --> $DIR/argument_order.rs:17:23
+   |
+LL |     let _: AlsoBad<7, 'static, u32, 'static, 17, u16>;
+   |                       ^^^^^^^
+   |
+   = note: lifetime arguments must be provided before type arguments
+   = help: reorder the arguments: lifetimes, then types, then consts: `<'a, 'b, T, U, N, M>`
+
+error: aborting due to 4 previous errors; 1 warning emitted
 
+For more information about this error, try `rustc --explain E0747`.