1 files changed, 6 insertions, 0 deletions
diff --git a/src/test/ui/codemap_tests/coherence-overlapping-inherent-impl-trait.rs b/src/test/ui/codemap_tests/coherence-overlapping-inherent-impl-trait.rs
new file mode 100644
index 000000000..414acfd84
--- /dev/null
+++ b/src/test/ui/codemap_tests/coherence-overlapping-inherent-impl-trait.rs
@@ -0,0 +1,6 @@
+#![allow(dead_code)]
+
+trait C {}
+impl dyn C { fn f() {} } //~ ERROR duplicate
+impl dyn C { fn f() {} }
+fn main() { }