Rollup merge of #39077 - jseyfried:crate_var_imports, r=nrc

Improve the warning cycle for `use $crate;`

Fixes #39049.
r? @nrc

2 files changed, 10 insertions, 3 deletions

diff --git a/src/test/compile-fail/auxiliary/import_crate_var.rs b/src/test/compile-fail/auxiliary/import_crate_var.rs
index 1dfc7a128aa..a8a55afa41a 100644
--- a/src/test/compile-fail/auxiliary/import_crate_var.rs
+++ b/src/test/compile-fail/auxiliary/import_crate_var.rs
@@ -8,5 +8,10 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+pub fn f() {}
+
 #[macro_export]
-macro_rules! m { () => { use $crate; } }
+macro_rules! m { () => {
+    use $crate;
+    import_crate_var::f();
+} }
diff --git a/src/test/compile-fail/import-crate-var.rs b/src/test/compile-fail/import-crate-var.rs
index 9f573945483..e58ba2c8891 100644
--- a/src/test/compile-fail/import-crate-var.rs
+++ b/src/test/compile-fail/import-crate-var.rs
@@ -11,11 +11,13 @@
 // aux-build:import_crate_var.rs
 // error-pattern: `$crate` may not be imported
 // error-pattern: `use $crate;` was erroneously allowed and will become a hard error
+// error-pattern: compilation successful
 
 #![feature(rustc_attrs)]
 
 #[macro_use] extern crate import_crate_var;
-m!();
 
 #[rustc_error]
-fn main() {}
+fn main() {
+    m!();
+}