Add API coverage for javax.xml.transform.{,dom}

API list:
 * javax.xml.transform.Transformer.reset()
 * javax.xml.transform.TransformerFactory.newInstance(java.lang.String, java.lang.ClassLoader)
 * javax.xml.transform.dom.DOMResult.DOMResult(org.w3c.dom.Node)
 * javax.xml.transform.dom.DOMResult.DOMResult(org.w3c.dom.Node, java.lang.String)
 * javax.xml.transform.dom.DOMResult.DOMResult(org.w3c.dom.Node, org.w3c.dom.Node)
 * javax.xml.transform.dom.DOMResult.DOMResult(org.w3c.dom.Node, org.w3c.dom.Node, java.lang.String)
 * javax.xml.transform.dom.DOMResult.getNextSibling()
 * javax.xml.transform.dom.DOMResult.getSystemId()
 * javax.xml.transform.dom.DOMResult.setNextSibling(org.w3c.dom.Node)
 * javax.xml.transform.dom.DOMResult.setSystemId(java.lang.String)
 * javax.xml.transform.dom.DOMSource.DOMSource()
 * javax.xml.transform.dom.DOMSource.DOMSource(org.w3c.dom.Node, java.lang.String)
 * javax.xml.transform.dom.DOMSource.setSystemId(java.lang.String)

Bug: 200273905
Test: atest CtsLibcoreTestCases:libcore.javax.xml.transform.dom.\
            DOM{Result,Source}Test
      atest CtsLibcoreTestCases:libcore.javax.xml.transform.\
            Transformer{,Factory}Test
Change-Id: I85ce065738eaf93be043ed215f663c0ebe97e2a9
4 files changed