Steps-leading-lone-slash-8a test fails in Zorba 2.0 branch

[Sorin Marian Nasoi]

In Zorba 2.0 branch,
http://bazaar.launchpad.net/~zorba-coders/zorba/2.0/files
revision 10421 compiled in release mode with
ZORBA_TEST_XQUERYX=ON ZORBA_XQUERYX=ON ZORBA_WITH_BIG_INTEGER=ON
the W3C test w3c_testsuite/XQuery/PathExpr/Steps/Steps-leading-lone-slash-8a is failing, see ctest output below.

The thing is that in the Zorba trunk, compiled in release mode the test is passing because it is marked as expected failure in
http://bazaar.launchpad.net/~zorba-coders/zorba/trunk/view/head:/test/rbkt/Queries/CMakeLists.txt
line 213

test w3c_testsuite/XQuery/PathExpr/Steps/Steps-leading-lone-slash-8a
=== Query: ===
(:*******************************************************:)
(: Test: Steps-leading-lone-slash-8a :)
(: Written by: Jim Melton :)
(: Date: 2009-10-01T14:00:00-07:00 :)
(: Purpose: Verify xgc:leading-lone-slash implementation :)
(: This expression is a valid expression :)
(: (/) instance of document-node(element(x)) :)
(:*******************************************************:)
declare variable $var := document {<a>123</a>};
$var[(/) instance of document-node(element(x))]
=== end of Query ===
=== Result: ===
<a>123</a>
=== end of result ===
testdriver: non-canonical result for reference result # 1 doesn't match.

Actual and Reference canonical results are not identical

Actual Canonical Result:

<root><a>123</a></root>

Reference Canonical Result:

<root></root>

See line 1, col 7 of expected result.
Actual: <<root><a>123</a></root>>
Expected: <<root></root>>