fix oopsie

Author: LorrensP-2158466

tests/ui/imports/import4.rs

@@ -1,3 +1,4 @@
-mod a { pub use crate::b::foo; } //~ ERROR unresolved import `crate::b`
+mod a { pub use crate::b::foo; } //~ ERROR unresolved import `crate::b::foo`
+mod b { pub use crate::a::foo; }
 
 fn main() { println!("loop"); }

tests/ui/imports/import4.stderr

@@ -1,13 +1,8 @@
-error[E0432]: unresolved import `crate::b`
-  --> $DIR/import4.rs:1:24
+error[E0432]: unresolved import `crate::b::foo`
+  --> $DIR/import4.rs:1:17
    |
 LL | mod a { pub use crate::b::foo; }
-   |                        ^ use of unresolved module or unlinked crate `b`
-   |
-help: you might be missing a crate named `b`, add it to your project and import it in your code
-   |
-LL + extern crate b;
-   |
+   |                 ^^^^^^^^^^^^^ no `foo` in `b`
 
 error: aborting due to 1 previous error