rustdoc: render visibility on associated types

This should only affect inherent associated types.

Author: wackbyte

Diff for: src/librustdoc/html/render/mod.rs

@@ -787,10 +787,12 @@ fn assoc_type(
     indent: usize,
     cx: &Context<'_>,
 ) {
+    let tcx = cx.tcx();
     write!(
         w,
-        "{indent}type <a{href} class=\"associatedtype\">{name}</a>{generics}",
+        "{indent}{vis}type <a{href} class=\"associatedtype\">{name}</a>{generics}",
         indent = " ".repeat(indent),
+        vis = visibility_print_with_space(it.visibility(tcx), it.item_id, cx),
         href = assoc_href_attr(it, link, cx),
         name = it.name.as_ref().unwrap(),
         generics = generics.print(cx),

Diff for: tests/rustdoc/anchors.no_type_anchor2.html

@@ -1 +1 @@
-<section id="associatedtype.Y" class="associatedtype"><h4 class="code-header">type <a href="#associatedtype.Y" class="associatedtype">Y</a> = <a class="primitive" href="{{channel}}/std/primitive.u32.html">u32</a></h4></section>
+<section id="associatedtype.Y" class="associatedtype"><h4 class="code-header">pub type <a href="#associatedtype.Y" class="associatedtype">Y</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></h4></section>