Generate toFooElement() functions from tagname data

Source/core/svg/SVGTextPathElement.h

Index: Source/core/svg/SVGTextPathElement.h
diff --git a/Source/core/svg/SVGTextPathElement.h b/Source/core/svg/SVGTextPathElement.h
index c18a011b384f8540c8a79059b19d1f09b55bc80d..16aac23b61d077e5a2c3df1b5d86b25b9e014f1f 100644
--- a/Source/core/svg/SVGTextPathElement.h
+++ b/Source/core/svg/SVGTextPathElement.h
@@ -20,7 +20,6 @@
 #ifndef SVGTextPathElement_h
 #define SVGTextPathElement_h
 
-#include "SVGNames.h"
 #include "core/svg/SVGTextContentElement.h"
 #include "core/svg/SVGURIReference.h"
 
@@ -140,12 +139,6 @@ private:
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
-inline SVGTextPathElement* toSVGTextPathElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(SVGNames::textPathTag));
-    return static_cast<SVGTextPathElement*>(node);
-}
-
 } // namespace WebCore
 
 #endif