Auto merge of rust-lang#91188 - jsha:fix-click-items, r=Manishearth

Fix clicking on anchors inside summary tags

Fixes rust-lang#91184

r? `@camelid`

Author: bors

src/librustdoc/html/static/js/main.js

@@ -888,7 +888,7 @@ function hideThemeButtonState() {
 
     onEachLazy(document.querySelectorAll(".rustdoc-toggle > summary:not(.hideme)"), function(el) {
         el.addEventListener("click", function(e) {
-            if (e.target.tagName != "SUMMARY") {
+            if (e.target.tagName != "SUMMARY" && e.target.tagName != "A") {
                 e.preventDefault();
             }
         });

src/test/rustdoc-gui/toggle-click-deadspace.goml

@@ -6,3 +6,7 @@ click: "h4.code-header" // This is the position of "pub" in "pub fn a_method"
 assert-attribute: (".impl-items .rustdoc-toggle", {"open": ""})
 click: ".impl-items .rustdoc-toggle summary::before" // This is the position of "[-]" next to that pub fn.
 assert-attribute-false: (".impl-items .rustdoc-toggle", {"open": ""})
+
+// Click the "Trait" part of "impl Trait" and verify it navigates.
+click: "#impl-Trait h3 a:first-of-type"
+assert-text: (".fqn .in-band", "Trait lib2::Trait")