Test http://www.w3.org/2001/DOM-Test-Suite/level1/core/nodecommentnodeattributes

<test name='nodecommentnodeattributes' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-1 dom1.xsd'>
     <metadata>
          <title>nodeCommentNodeAttributes</title>
          <creator>NIST</creator>
          <description> The "getAttributes()" method invoked on a Comment Node returns null. Find any comment that is an immediate child of the root and assert that Node.attributes is null. Then create a new comment node (in case they had been omitted) and make the assertion. </description>
          <contributor>Mary Brady</contributor>
          <date qualifier='created'>2001-08-17</date>
          <subject resource='http://www.w3.org/TR/1998/REC-DOM-Level-1-19981001/level-one-core#ID-84CF096'/>
          <subject resource='http://www.w3.org/TR/1998/REC-DOM-Level-1-19981001/level-one-core#ID-1728279322'/>
          <subject resource='http://www.w3.org/Bugs/Public/show_bug.cgi?id=248'/>
</metadata>
     <var name='doc' type='Document'/>
     <var name='childList' type='NodeList'/>
     <var name='childNode' type='Node'/>
     <var name='attrList' type='NamedNodeMap'/>
     <var name='nodeType' type='int'/>
     <load var='doc' href='staff' willBeModified='false'/>
     <childNodes obj='doc' var='childList'/>
     <for-each collection='childList' member='childNode'>
          <nodeType var='nodeType' obj='childNode'/>
          <if>
               <equals actual='nodeType' expected='8' ignoreCase='false'/>
               <attributes obj='childNode' var='attrList'/>
               <assertNull actual='attrList' id='attributesNull'/>
          </if>
     </for-each>
     <createComment var='childNode' obj='doc' data='"This is a comment"'/>
     <attributes obj='childNode' var='attrList'/>
     <assertNull actual='attrList' id='createdAttributesNull'/>
</test>

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