Only skip impls of foreign unstable traits

Previously unstable impls were skipped, which meant that any impl with an
unstable method would get skipped.

2 files changed, 37 insertions, 0 deletions

diff --git a/src/test/rustdoc/auxiliary/unstable-trait.rs b/src/test/rustdoc/auxiliary/unstable-trait.rs
new file mode 100644
index 00000000000..6f06a6e2656
--- /dev/null
+++ b/src/test/rustdoc/auxiliary/unstable-trait.rs
@@ -0,0 +1,26 @@
+#![feature(staged_api)]
+#![stable(feature = "private_general", since = "1.0.0")]
+
+#[unstable(feature = "private_trait", issue = "none")]
+pub trait Bar {}
+
+#[stable(feature = "private_general", since = "1.0.0")]
+pub struct Foo {
+    // nothing
+}
+
+impl Foo {
+    #[stable(feature = "private_general", since = "1.0.0")]
+    pub fn stable_impl() {}
+}
+
+impl Foo {
+    #[unstable(feature = "private_trait", issue = "none")]
+    pub fn bar() {}
+
+    #[stable(feature = "private_general", since = "1.0.0")]
+    pub fn bar2() {}
+}
+
+#[stable(feature = "private_general", since = "1.0.0")]
+impl Bar for Foo {}
diff --git a/src/test/rustdoc/hide-unstable-trait.rs b/src/test/rustdoc/hide-unstable-trait.rs
new file mode 100644
index 00000000000..c30d6ed7b52
--- /dev/null
+++ b/src/test/rustdoc/hide-unstable-trait.rs
@@ -0,0 +1,11 @@
+// aux-build:unstable-trait.rs
+
+#![crate_name = "foo"]
+#![feature(private_trait)]
+
+extern crate unstable_trait;
+
+// @has foo/struct.Foo.html 'bar'
+// @has foo/struct.Foo.html 'bar2'
+#[doc(inline)]
+pub use unstable_trait::Foo;