1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/synthetic-param.rs b/src/test/ui/compile-fail-migration/synthetic-param.rs
new file mode 100644
index 00000000000..337cae1369e
--- /dev/null
+++ b/src/test/ui/compile-fail-migration/synthetic-param.rs
@@ -0,0 +1,38 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(rustc_attrs)]
+
+fn func<#[rustc_synthetic] T>(_: T) {}
+
+struct Foo;
+
+impl Foo {
+    pub fn func<#[rustc_synthetic] T>(_: T) {}
+}
+
+struct Bar<S> {
+    t: S
+}
+
+impl<S> Bar<S> {
+    pub fn func<#[rustc_synthetic] T>(_: T) {}
+}
+
+fn main() {
+    func::<u8>(42); //~ ERROR cannot provide explicit type parameters
+    func(42); // Ok
+
+    Foo::func::<u8>(42); //~ ERROR cannot provide explicit type parameters
+    Foo::func(42); // Ok
+
+    Bar::<i8>::func::<u8>(42); //~ ERROR cannot provide explicit type parameters
+    Bar::<i8>::func(42); // Ok
+}