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+// compile-flags: --document-private-items --crate-type=lib
+// edition: 2021
+
+// Issue 109931 -- test against accidentally documenting the `impl Future`
+// that comes from an async fn desugaring.
+
+// Check that we don't document an unnamed opaque type
+// @!has async_fn_opaque_item/opaque..html
+
+// Checking there is only a "Functions" header and no "Opaque types".
+// @has async_fn_opaque_item/index.html
+// @count - '//*[@class="small-section-header"]' 1
+// @has - '//*[@class="small-section-header"]' 'Functions'
+
+pub async fn test() {}