1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/resolve/issue-3907.rs b/tests/ui/resolve/issue-3907.rs
new file mode 100644
index 00000000000..6211de42717
--- /dev/null
+++ b/tests/ui/resolve/issue-3907.rs
@@ -0,0 +1,20 @@
+// aux-build:issue-3907.rs
+
+extern crate issue_3907;
+
+type Foo = dyn issue_3907::Foo;
+
+struct S {
+    name: isize
+}
+
+impl Foo for S { //~ ERROR expected trait, found type alias `Foo`
+    fn bar() { }
+}
+
+fn main() {
+    let s = S {
+        name: 0
+    };
+    s.bar();
+}