Generate toFooElement() functions from tagname data

Source/core/html/HTMLImageElement.h

Index: Source/core/html/HTMLImageElement.h
diff --git a/Source/core/html/HTMLImageElement.h b/Source/core/html/HTMLImageElement.h
index f8acd66d8f4546ca6bfc1c1b838ab5f06a3e7085..0f25202befe1a31a217cfc2e40fab59a9027c1e2 100644
--- a/Source/core/html/HTMLImageElement.h
+++ b/Source/core/html/HTMLImageElement.h
@@ -114,18 +114,6 @@ private:
     CompositeOperator m_compositeOperator;
 };
 
-inline HTMLImageElement* toHTMLImageElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(HTMLNames::imgTag));
-    return static_cast<HTMLImageElement*>(node);
-}
-
-inline const HTMLImageElement* toHTMLImageElement(const Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(HTMLNames::imgTag));
-    return static_cast<const HTMLImageElement*>(node);
-}
-
 } //namespace
 
 #endif