Optimize hasTagName when called on an HTMLElement / SVGElement

Source/build/scripts/templates/MakeQualifiedNames.h.tmpl

Index: Source/build/scripts/templates/MakeQualifiedNames.h.tmpl
diff --git a/Source/build/scripts/templates/MakeQualifiedNames.h.tmpl b/Source/build/scripts/templates/MakeQualifiedNames.h.tmpl
index cdaf08128e818bb3fb67ea74982e25e77a97862b..36758ea63b2a6c2baf5d29accdc69062562899fa 100644
--- a/Source/build/scripts/templates/MakeQualifiedNames.h.tmpl
+++ b/Source/build/scripts/templates/MakeQualifiedNames.h.tmpl
@@ -8,6 +8,9 @@
 #include "wtf/PassOwnPtr.h"
 
 namespace WebCore {
+
+class {{namespace}}QualifiedName : public QualifiedName { };
+
 namespace {{namespace}}Names {
 
 #ifndef {{namespace|to_macro_style}}_NAMES_HIDE_GLOBALS
@@ -16,7 +19,7 @@ extern const WTF::AtomicString {{namespace_prefix}}NamespaceURI;
 
 // Tags
 {% for tag in tags|sort %}
-extern const WebCore::QualifiedName {{tag|symbol}}Tag;
+extern const WebCore::{{namespace}}QualifiedName {{tag|symbol}}Tag;
 {% endfor %}
 
 // Attributes
@@ -27,7 +30,7 @@ extern const WebCore::QualifiedName {{attr|symbol}}Attr;
 #endif // {{namespace|to_macro_style}}_NAMES_HIDE_GLOBALS
 {% if tags %}
 const unsigned {{namespace}}TagsCount = {{tags|count}};
-PassOwnPtr<const QualifiedName*[]> get{{namespace}}Tags();
+PassOwnPtr<const {{namespace}}QualifiedName*[]> get{{namespace}}Tags();
 {% endif %}
 const unsigned {{namespace}}AttrsCount = {{attrs|count}};
 PassOwnPtr<const QualifiedName*[]> get{{namespace}}Attrs();