Add a test for rust-lang#3137

Author: topecongiro

tests/source/type.rs

@@ -92,6 +92,14 @@ macro_rules! foo {
 
 type Target = ( FooAPI ) + 'static;
 
+// #3137
+fn foo<T>(t: T)
+where
+    T: ( FnOnce() -> () ) + Clone,
+    U: ( FnOnce() -> () ) + 'static,
+{
+}
+
 // #3117
 fn issue3117() {
     {

tests/target/type.rs

@@ -91,6 +91,14 @@ macro_rules! foo {
 
 type Target = (FooAPI) + 'static;
 
+// #3137
+fn foo<T>(t: T)
+where
+    T: (FnOnce() -> ()) + Clone,
+    U: (FnOnce() -> ()) + 'static,
+{
+}
+
 // #3117
 fn issue3117() {
     {