Remove TreatNullAs=NullString for HTMLAnchorElement

LayoutTests/fast/dom/element-attribute-js-null-expected.txt

Index: LayoutTests/fast/dom/element-attribute-js-null-expected.txt
diff --git a/LayoutTests/fast/dom/element-attribute-js-null-expected.txt b/LayoutTests/fast/dom/element-attribute-js-null-expected.txt
index 800fa7aeea65eec859a140a8135f6018234d9801..12092ce319eb4c4f93476900dd7dfe194da2a22c 100644
--- a/LayoutTests/fast/dom/element-attribute-js-null-expected.txt
+++ b/LayoutTests/fast/dom/element-attribute-js-null-expected.txt
@@ -14,16 +14,18 @@ TEST SUCCEEDED: The value was the empty string. [tested HTMLElement.innerText]
 TEST SUCCEEDED: Exception (SyntaxError: An invalid or illegal string was specified.) was thrown as expected. [tested HTMLElement.contentEditable]
 
 TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.accessKey]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.charset]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.coords]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.charset]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.coords]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.download]
 TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.href]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.hreflang]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.name]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.rel]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.rev]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.shape]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.target]
-TEST SUCCEEDED: The value was the empty string. [tested HTMLAnchorElement.type]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.hreflang]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.name]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.ping]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.rel]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.rev]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.shape]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.target]
+TEST SUCCEEDED: The value was the string 'null'. [tested HTMLAnchorElement.type]
 
 TEST SUCCEEDED: The value was the empty string. [tested HTMLAppletElement.align]
 TEST SUCCEEDED: The value was the empty string. [tested HTMLAppletElement.alt]