Auto merge of #8296 - notriddle:svg_title_prepend, r=nox

Prepend, rather than append, SVG title elements.

Fixes #8164

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components/script/dom/document.rs

@@ -1740,8 +1740,10 @@ impl DocumentMethods for Document {
                     let name = QualName::new(ns!(SVG), atom!("title"));
                     let elem = Element::create(name, None, self,
                                                ElementCreator::ScriptCreated);
-                    root.upcast::<Node>()
-                        .AppendChild(elem.upcast())
+                    let parent = root.upcast::<Node>();
+                    let child = elem.upcast::<Node>();
+                    parent
+                        .InsertBefore(child, parent.GetFirstChild().r())
                         .unwrap()
                 }
             }

tests/wpt/metadata/html/dom/documents/dom-tree-accessors/document.title-09.html.ini

@@ -1,8 +0,0 @@
-[document.title-09.html]
-  type: testharness
-  [No title element in SVG document]
-    expected: FAIL
-
-  [Title element not child of SVG root]
-    expected: FAIL
-