Add a regression test for issue #156264

Author: petrochenkov

tests/ui/imports/ambiguous-import-visibility-globglob-reexport.rs

@@ -0,0 +1,15 @@
+// Regression test for issue #156264
+
+mod m_pub {
+    pub struct S {}
+}
+
+mod m_crate {
+    pub(crate) use crate::m_pub::S;
+}
+
+pub(crate) use m_crate::*;
+//~^ ERROR `S` is only public within the crate, and cannot be re-exported outside
+pub use m_pub::*;
+
+fn main() {}

tests/ui/imports/ambiguous-import-visibility-globglob-reexport.stderr

@@ -0,0 +1,11 @@
+error[E0365]: `S` is only public within the crate, and cannot be re-exported outside
+  --> $DIR/ambiguous-import-visibility-globglob-reexport.rs:11:16
+   |
+LL | pub(crate) use m_crate::*;
+   |                ^^^^^^^^^^ re-export of crate public `S`
+   |
+   = note: consider declaring type or module `S` with `pub`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0365`.