3 files changed, 60 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/auxiliary/extra-item.rs b/src/test/ui/impl-trait/auxiliary/extra-item.rs
new file mode 100644
index 000000000..8eaeafa52
--- /dev/null
+++ b/src/test/ui/impl-trait/auxiliary/extra-item.rs
@@ -0,0 +1 @@
+pub trait MyTrait {}
diff --git a/src/test/ui/impl-trait/auxiliary/no_method_suggested_traits.rs b/src/test/ui/impl-trait/auxiliary/no_method_suggested_traits.rs
new file mode 100644
index 000000000..cefb17e0f
--- /dev/null
+++ b/src/test/ui/impl-trait/auxiliary/no_method_suggested_traits.rs
@@ -0,0 +1,36 @@
+pub use reexport::Reexported;
+
+pub struct Foo;
+pub enum Bar { X }
+
+pub mod foo {
+    pub trait PubPub {
+        fn method(&self) {}
+
+        fn method3(&self) {}
+    }
+
+    impl PubPub for u32 {}
+    impl PubPub for i32 {}
+}
+pub mod bar {
+    trait PubPriv {
+        fn method(&self);
+    }
+}
+mod qux {
+    pub trait PrivPub {
+        fn method(&self);
+    }
+}
+mod quz {
+    trait PrivPriv {
+        fn method(&self);
+    }
+}
+
+mod reexport {
+    pub trait Reexported {
+        fn method(&self);
+    }
+}
diff --git a/src/test/ui/impl-trait/auxiliary/xcrate.rs b/src/test/ui/impl-trait/auxiliary/xcrate.rs
new file mode 100644
index 000000000..ac016258b
--- /dev/null
+++ b/src/test/ui/impl-trait/auxiliary/xcrate.rs
@@ -0,0 +1,23 @@
+// NOTE commented out due to issue #45994
+//pub fn fourway_add(a: i32) -> impl Fn(i32) -> impl Fn(i32) -> impl Fn(i32) -> i32 {
+//    move |b| move |c| move |d| a + b + c + d
+//}
+
+fn some_internal_fn() -> u32 {
+    1
+}
+
+fn other_internal_fn() -> u32 {
+    1
+}
+
+// See #40839
+pub fn return_closure_accessing_internal_fn() -> impl Fn() -> u32 {
+    || {
+        some_internal_fn() + 1
+    }
+}
+
+pub fn return_internal_fn() -> impl Fn() -> u32 {
+    other_internal_fn
+}