1 files changed, 47 insertions, 0 deletions
diff --git a/src/test/ui/symbol-names/trait-objects.rs b/src/test/ui/symbol-names/trait-objects.rs
new file mode 100644
index 000000000..5bcbc0841
--- /dev/null
+++ b/src/test/ui/symbol-names/trait-objects.rs
@@ -0,0 +1,47 @@
+// Ensure that trait objects don't include more than one binder. See #83611
+
+// build-fail
+// revisions: v0
+//[v0]compile-flags: -C symbol-mangling-version=v0
+//[v0]normalize-stderr-test: "core\[.*?\]" -> "core[HASH]"
+
+#![feature(rustc_attrs)]
+
+trait Bar {
+    fn method(&self) {}
+}
+
+impl Bar for &dyn FnMut(&u8) {
+    #[rustc_symbol_name]
+    //[v0]~^ ERROR symbol-name
+    //[v0]~| ERROR demangling
+    //[v0]~| ERROR demangling-alt
+    fn method(&self) {}
+}
+
+trait Foo {
+    fn method(&self) {}
+}
+
+impl Foo for &(dyn FnMut(&u8) + for<'b> Send) {
+    #[rustc_symbol_name]
+    //[v0]~^ ERROR symbol-name
+    //[v0]~| ERROR demangling
+    //[v0]~| ERROR demangling-alt
+    fn method(&self) {}
+}
+
+trait Baz {
+    fn method(&self) {}
+}
+
+impl Baz for &(dyn for<'b> Send + FnMut(&u8)) {
+    #[rustc_symbol_name]
+    //[v0]~^ ERROR symbol-name
+    //[v0]~| ERROR demangling
+    //[v0]~| ERROR demangling-alt
+    fn method(&self) {}
+}
+
+fn main() {
+}