Summary
-------

A few java.xml APIs contained raw types. This change adds the type parameter to
eliminate raw types.

Problem
-------

The following java.xml APIs contain method declarations with raw types:

javax/xml/namespace/NamespaceContext.java

    Iterator getPrefixes(String namespaceURI);

javax/xml/xpath/XPathFunction.java

    public Object evaluate(List args)

org/xml/sax/helpers/NamespaceSupport.java

    public Enumeration getPrefixes ()
    public Enumeration getPrefixes (String uri)
    public Enumeration getDeclaredPrefixes ()

Solution
--------

Add the type parameter to eliminate the raw types.

Specification
-------------

    src/java.xml/share/classes/javax/xml/namespace/NamespaceContext.java
    - Iterator getPrefixes(String namespaceURI);
    + Iterator<String> getPrefixes(String namespaceURI);

    src/java.xml/share/classes/javax/xml/xpath/XPathFunction.java
    - public Object evaluate(List args)
    + public Object evaluate(List<Object> args)

    src/java.xml/share/classes/org/xml/sax/helpers/NamespaceSupport.java
    - public Enumeration getPrefixes ()
    + public Enumeration<String> getPrefixes ()

    - public Enumeration getPrefixes (String uri)
    + public Enumeration<String> getPrefixes (String uri)

    - public Enumeration getDeclaredPrefixes ()
    + public Enumeration<String> getDeclaredPrefixes ()