Move isNameCacheValid member from LiveNodeListBase to HTMLCollection

Source/core/html/HTMLCollection.cpp

Index: Source/core/html/HTMLCollection.cpp
diff --git a/Source/core/html/HTMLCollection.cpp b/Source/core/html/HTMLCollection.cpp
index dffff6c04baeee534d368500ac71236ee1989447..58cb3273027204ee8ae560e1c6e87e179562c1c5 100644
--- a/Source/core/html/HTMLCollection.cpp
+++ b/Source/core/html/HTMLCollection.cpp
@@ -163,6 +163,7 @@ static NodeListInvalidationType invalidationTypeExcludingIdAndNameAttributes(Col
 HTMLCollection::HTMLCollection(Node* ownerNode, CollectionType type, ItemAfterOverrideType itemAfterOverrideType)
     : LiveNodeListBase(ownerNode, rootTypeFromCollectionType(type), invalidationTypeExcludingIdAndNameAttributes(type),
         WebCore::shouldOnlyIncludeDirectChildren(type), type, itemAfterOverrideType)
+    , m_isNameCacheValid(false)
 {
     ScriptWrappable::init(this);
 }