Rollup merge of rust-lang#93339 - notriddle:notriddle/test-generics-m…

…ulti-trait, r=GuillaumeGomez

rustdoc: add test case for multiple traits and erased names

rust-lang#92339 (comment)

src/test/rustdoc-js/generics-multi-trait.js

@@ -0,0 +1,32 @@
+// exact-check
+
+const QUERY = [
+    'Result<SomeTrait>',
+    'Zzzzzzzzzzzzzzzzzz',
+    'Nonononononononono',
+];
+
+const EXPECTED = [
+    // check one of the generic items
+    {
+        'in_args': [
+            { 'path': 'generics_multi_trait', 'name': 'beta' },
+        ],
+        'returned': [
+            { 'path': 'generics_multi_trait', 'name': 'bet' },
+        ],
+    },
+    {
+        'in_args': [
+            { 'path': 'generics_multi_trait', 'name': 'beta' },
+        ],
+        'returned': [
+            { 'path': 'generics_multi_trait', 'name': 'bet' },
+        ],
+    },
+    // ignore the name of the generic itself
+    {
+        'in_args': [],
+        'returned': [],
+    },
+];

src/test/rustdoc-js/generics-multi-trait.rs

@@ -0,0 +1,12 @@
+pub trait SomeTrait {}
+pub trait Zzzzzzzzzzzzzzzzzz {}
+
+pub fn bet<Nonononononononono: SomeTrait + Zzzzzzzzzzzzzzzzzz>() -> Result<Nonononononononono, ()> {
+    loop {}
+}
+
+pub fn beta<Nonononononononono: SomeTrait + Zzzzzzzzzzzzzzzzzz>(
+    _param: Result<Nonononononononono, ()>,
+) {
+    loop {}
+}