Update rustdoc tests

src/test/rustdoc-gui/implementors.goml

@@ -16,8 +16,16 @@ assert-attribute: ("#implementors-list .impl:nth-child(2) > a.anchor", {"href":
 assert: "#implementors-list .impl:nth-child(2) > .code-header.in-band"
 
 goto: file://|DOC_PATH|/test_docs/struct.HasEmptyTraits.html
-compare-elements-position-near-false: ("#impl-EmptyTrait1", "#impl-EmptyTrait2", {"y": 30})
-compare-elements-position-near: ("#impl-EmptyTrait3 h3", "#impl-EmptyTrait3 .item-info", {"y": 30})
+compare-elements-position-near-false: (
+    "#impl-EmptyTrait1-for-HasEmptyTraits",
+    "#impl-EmptyTrait2-for-HasEmptyTraits",
+    {"y": 30},
+)
+compare-elements-position-near: (
+    "#impl-EmptyTrait3-for-HasEmptyTraits h3",
+    "#impl-EmptyTrait3-for-HasEmptyTraits .item-info",
+    {"y": 30},
+)
 
 // Now check that re-exports work correctly.
 // There should be exactly one impl shown on both of these pages.

src/test/rustdoc-gui/item-info-overflow.goml

@@ -15,14 +15,17 @@ assert-text: (
 // Checking the "item-info" on an impl block as well:
 goto: file://|DOC_PATH|/lib2/struct.LongItemInfo2.html
 compare-elements-property: (
-    "#impl-SimpleTrait .item-info",
-    "#impl-SimpleTrait + .docblock",
+    "#impl-SimpleTrait-for-LongItemInfo2 .item-info",
+    "#impl-SimpleTrait-for-LongItemInfo2 + .docblock",
     ["scrollWidth"],
 )
-assert-property: ("#impl-SimpleTrait .item-info", {"scrollWidth": "866"})
+assert-property: (
+    "#impl-SimpleTrait-for-LongItemInfo2 .item-info",
+    {"scrollWidth": "866"},
+)
 // Just to be sure we're comparing the correct "item-info":
 assert-text: (
-    "#impl-SimpleTrait .item-info",
+    "#impl-SimpleTrait-for-LongItemInfo2 .item-info",
     "Available on Android or Linux or Emscripten or DragonFly BSD",
     STARTS_WITH,
 )