rustdoc: move cross-crate lifetime/outlives bounds on GAT params from where-clause to param declaration site

I've overlooked this in #103190.

Author: fmease

src/librustdoc/clean/mod.rs

@@ -1303,7 +1303,16 @@ pub(crate) fn clean_middle_assoc_item<'tcx>(
                         ..
                     }) = generics.params.iter_mut().find(|param| &param.name == arg)
                     {
-                        param_bounds.extend(mem::take(bounds));
+                        param_bounds.append(bounds);
+                    } else if let WherePredicate::RegionPredicate { lifetime: Lifetime(arg), bounds } = &mut pred
+                    && let Some(GenericParamDef {
+                        kind: GenericParamDefKind::Lifetime { outlives: param_bounds },
+                        ..
+                    }) = generics.params.iter_mut().find(|param| &param.name == arg) {
+                        param_bounds.extend(bounds.drain(..).map(|bound| match bound {
+                            GenericBound::Outlives(lifetime) => lifetime,
+                            _ => unreachable!(),
+                        }));
                     } else {
                         where_predicates.push(pred);
                     }

src/test/rustdoc/inline_cross/assoc_item_trait_bounds.rs

@@ -38,3 +38,7 @@ extern crate assoc_item_trait_bounds as aux;
 //     F: FnOnce(u32) -> String, \
 //     Self::Out2<()>: Protocol<u8, Q0 = Self::Item, Q1 = ()>"
 pub use aux::Main;
+
+// @has main/trait.Aid.html
+// @has - '//*[@id="associatedtype.Result"]' "type Result<'inter: 'src>"
+pub use aux::Aid;

src/test/rustdoc/inline_cross/auxiliary/assoc_item_trait_bounds.rs

@@ -42,5 +42,5 @@ pub trait Helper {
 }
 
 pub trait Aid<'src> {
-    type Result<'inter>;
+    type Result<'inter: 'src>;
 }