HTMLTableSectionElement.insertRow(0) / HTMLTableRowElement.insertCell(0) do not behave correctly

Source/core/html/HTMLTableSectionElement.cpp

Index: Source/core/html/HTMLTableSectionElement.cpp
diff --git a/Source/core/html/HTMLTableSectionElement.cpp b/Source/core/html/HTMLTableSectionElement.cpp
index 30af275fb286ad5abe094adbc35317c2e21e542d..35644d2699128298400ed55c2444bbda185caefd 100644
--- a/Source/core/html/HTMLTableSectionElement.cpp
+++ b/Source/core/html/HTMLTableSectionElement.cpp
@@ -76,7 +76,7 @@ PassRefPtr<HTMLElement> HTMLTableSectionElement::insertRow(int index, ExceptionS
     if (numRows == index || index == -1) {
         appendChild(row, exceptionState);
     } else {
-        Node* n = index ? children->item(index) : firstChild();
+        Element* n = children->item(index);

[tkent, 2014/05/07 01:18:23]

nit: We can remove the local variable |n| and fold this line into the next.

[Inactive, 2014/05/07 01:37:13]

Done.

         insertBefore(row, n, exceptionState);
     }
     return row.release();