[xml] change saml_advice.h to declarer the real node type

It also needed a change to bindings.py to parse struct as well as
typedef node classes.

bindings/bindings.py

@@ -483,6 +483,9 @@ def parse_header(header_file):
                 pass
             else:
                 # TODO: Add parsing of OFTYPE
+                # Transform struct to typedef
+                # example: "struct _LassoAssertion" -> "LassoAssertion"
+                line = re.sub('\s+struct _', ' ', line)
                 member_match = re.match('\s+(\w+)\s+(\*?\w+)', line)
                 if member_match:
                     member_type, member_name = normalise_var(member_match.group(1), member_match.group(2))

lasso/xml/saml_advice.h

@@ -52,8 +52,7 @@ struct _LassoSamlAdvice {
 	/* <element ref="saml:AssertionIDReference"/> */
 	GList *AssertionIDReference; /* of LassoNode */
 	/* <element ref="saml:Assertion"/> */
-	LassoNode *Assertion; /* actually LassoSamlAssertion* but it recurses */
-
+	struct _LassoSamlAssertion *Assertion;
 };
 
 struct _LassoSamlAdviceClass {