[bugfix] Function References should be able to have postfix expressions

exist-core/src/test/xquery/xquery3/function-reference.xqm

@@ -0,0 +1,43 @@
+(:
+ : eXist-db Open Source Native XML Database
+ : Copyright (C) 2001 The eXist-db Authors
+ :
+ : [email protected]
+ : http://www.exist-db.org
+ :
+ : This library is free software; you can redistribute it and/or
+ : modify it under the terms of the GNU Lesser General Public
+ : License as published by the Free Software Foundation; either
+ : version 2.1 of the License, or (at your option) any later version.
+ :
+ : This library is distributed in the hope that it will be useful,
+ : but WITHOUT ANY WARRANTY; without even the implied warranty of
+ : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ : Lesser General Public License for more details.
+ :
+ : You should have received a copy of the GNU Lesser General Public
+ : License along with this library; if not, write to the Free Software
+ : Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ :)
+xquery version "3.1";
+
+module namespace fr = "http://exist-db.org/xquery/test/function-reference";
+
+declare namespace test = "http://exist-db.org/xquery/xqsuite";
+
+declare
+    %test:assertExists
+function fr:function-reference() {
+  fr:test-identity#1
+};
+
+declare
+    %test:args("adam")
+    %test:assertEquals("adam")
+function fr:function-reference-eval($arg) {
+  fr:test-identity#1($arg)
+};
+
+declare function fr:test-identity($x) {
+  $x
+};