tests: Skip functions taking va_lists in testapi.c

See !325.

codegen/genTestApi.py

@@ -168,16 +168,23 @@ for file in os.listdir(xmlDocDir):
             module1, module2 = xmlmod.findModules(module, name)
 
             cargs = []
+            skip = False
             for arg in func.findall('param'):
                 atype = etree.tostring(arg.find('type'),
                     method='text', encoding='unicode').rstrip()
                 if atype == 'void':
                     continue
+                if atype == 'va_list':
+                    skip = True
+                    break
                 if re.search(r'(Ptr|\*)$', atype):
                     cargs.append('NULL')
                 else:
                     cargs.append('0')
 
+            if skip:
+                continue
+
             mfunc = functions.get(module1)
             if mfunc is None:
                 mfunc = {}