add human readable annotations for errors in tests

Author: b-naber

tests/ui/resolve/open-ns-1.rs

@@ -12,8 +12,8 @@ fn main() {
     let _ = root_function();
     let _ = my_api::root_function();
     let _ = my_api::utils::utils_helper();
-    //~^ ERROR E0433
+    //~^ ERROR cannot find `utils` in `my_api` [E0433]
     let _ = util::util_mod_helper();
     let _ = my_api::core::core_fn();
-    //~^ ERROR E0433
+    //~^ ERROR cannot find `core` in `my_api` [E0433]
 }

tests/ui/resolve/open-ns-10.rs

@@ -5,9 +5,9 @@
 //@ edition: 2024
 
 use my_api::core::{core_fn, core_fn2};
-//~^ ERROR E0432
+//~^ ERROR unresolved import `my_api::core` [E0432]
 use my_api::utils::*;
-//~^ ERROR E0432
+//~^ ERROR unresolved import `my_api::utils` [E0432]
 use my_api::*;
 
 fn main() {

tests/ui/resolve/open-ns-2.rs

@@ -10,5 +10,5 @@
 fn main() {
     let _ = my_api::utils::root_helper();
     let _ = my_api::utils::utils_helper();
-    //~^ ERROR E0425
+    //~^ ERROR cannot find function `utils_helper` in module `my_api::utils` [E0425]
 }

tests/ui/resolve/open-ns-3.rs

@@ -8,5 +8,5 @@
 fn main() {
     let _ = my_api::root_function();
     let _ = my_api::utils::utils_helper();
-    //~^ ERROR E0433
+    //~^ ERROR cannot find `utils` in `my_api` [E0433]
 }

tests/ui/resolve/open-ns-4.rs

@@ -3,7 +3,7 @@
 //@ aux-crate: my_api::utils=open-ns-my_api_utils.rs
 //@ compile-flags: -Z namespaced-crates
 //@ edition: 2024
-//@ build-pass
+//@ check-pass
 
 macro_rules! import_and_call {
     ($import_path:path, $fn_name:ident) => {{

tests/ui/resolve/open-ns-5.rs

@@ -3,7 +3,7 @@
 //@ aux-crate: my_api::utils=open-ns-my_api_utils.rs
 //@ compile-flags: -Z namespaced-crates
 //@ edition: 2024
-//@ build-pass
+//@ check-pass
 
 use my_api;
 use my_api::utils::utils_helper;

tests/ui/resolve/open-ns-6.rs

@@ -6,9 +6,9 @@
 //@ edition: 2024
 
 use my_api::utils::utils_helper;
-//~^ ERROR E0432
+//~^ ERROR unresolved import `my_api::utils` [E0432]
 
 fn main() {
     let _ = my_api::utils::utils_helper();
-    //~^ ERROR E0433
+    //~^ ERROR cannot find `utils` in `my_api` [E0433]
 }

tests/ui/resolve/open-ns-7.rs

@@ -1,8 +1,8 @@
-// Tests that namespaced crate names work inside macros.
+// Tests that a macro-generated item has higher precendence than a namespaced crate
 //@ aux-crate: my_api::utils=open-ns-my_api_utils.rs
 //@ compile-flags: -Z namespaced-crates
 //@ edition: 2024
-//@ build-pass
+//@ check-pass
 
 macro_rules! define {
     () => {

tests/ui/resolve/open-ns-8.rs

@@ -1,8 +1,9 @@
-// Tests that namespaced crate names work inside macros.
 //@ aux-crate: my_api::utils=open-ns-my_api_utils.rs
 //@ compile-flags: -Z namespaced-crates
 //@ edition: 2024
-//@ build-pass
+
+use my_api::utils::get_u32;
+//~^ ERROR `my_api` is ambiguous [E0659]
 
 macro_rules! define {
     () => {
@@ -12,18 +13,13 @@ macro_rules! define {
                     2
                 }
             }
-
-            pub mod unique {
-                pub fn get_u32() -> u32 {
-                    2
-                }
-            }
         }
     };
 }
 
+define!();
+
 fn main() {
-    define!();
-    let res1 = my_api::unique::get_u32();
-    assert_eq!(res1, 2);
+    let val = get_u32();
+    assert_eq!(val, 2);
 }