[gxml] GParser: add body for node property

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit ae2a5465ace0b02bc6173eefa660de6900d458a1
Author: Daniel Espinosa <esodan gmail com>
Date:   Mon Apr 8 08:53:11 2019 -0500

    GParser: add body for node property
    
    Fix https://gitlab.gnome.org/GNOME/gxml/issues/21

 gxml/GXmlParser.vala | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/gxml/GXmlParser.vala b/gxml/GXmlParser.vala
index d39a517..d12fc45 100644
--- a/gxml/GXmlParser.vala
+++ b/gxml/GXmlParser.vala
@@ -23,9 +23,11 @@
 
 private class GXml.GParser : Object, Parser {
   private GDocument document;
+  private DomNode _node;
 
   public GParser (GDocument doc) {
     document = doc;
+    _node = doc;
   }
 
   // Parser Interface
@@ -105,7 +107,7 @@ private class GXml.GParser : Object, Parser {
        }
        public bool backup { get; set; }
        public bool indent { get; set; }
-       public GXml.DomNode node { get; }
+       public GXml.DomNode node { get { return _node; } }
        public Cancellable? cancellable { get; set; }
 }