public KeyPattern(XsltKey key) : base(null) { this.key = key; }
public KeyPattern(XsltKey key) : base((NodeTest)null) { this.key = key; }
public KeyPattern(XsltKey key) : base(null) { this.key = key; }
public KeyPattern(XsltKey key) : base((NodeTest)null) { this.key = key; }