Remove structured cloning restriction over accessor properties.

LayoutTests/fast/dom/Window/window-postmessage-clone-expected.txt

Index: LayoutTests/fast/dom/Window/window-postmessage-clone-expected.txt
diff --git a/LayoutTests/fast/dom/Window/window-postmessage-clone-expected.txt b/LayoutTests/fast/dom/Window/window-postmessage-clone-expected.txt
index 2babd8b186d9fc901f4707b49e7853370ddc534c..f7c866ab804e619cfd2fb735a44a0440677b9cdd 100644
--- a/LayoutTests/fast/dom/Window/window-postmessage-clone-expected.txt
+++ b/LayoutTests/fast/dom/Window/window-postmessage-clone-expected.txt
@@ -67,27 +67,27 @@ PASS: reference equality preserved
 PASS: accessors used
 PASS: reference equality preserved (opposite order)
 PASS: accessors used (opposite order)
-PASS: accessor value was nullified
+PASS: accessor value was not nullified
 PASS: non-accessor value was not nullified
-PASS: accessor value was nullified
+PASS: accessor value was not nullified
 PASS: non-accessor value was not nullified
 PASS: non-accessor value was not nullified
-PASS: accessor value was nullified
+PASS: accessor value was not nullified
 PASS: non-accessor value was not nullified
 PASS: accessor value was not nullified
 PASS: accessor value was not nullified
-PASS: accessor value was nullified
+PASS: accessor value was not nullified
 PASS: non-accessor value was not nullified
 PASS: non-accessor value was not nullified
 PASS: non-accessor value is defined
 PASS: non-accessor value was not nullified
 PASS: non-accessor value is defined
-PASS: accessor value was nullified
+PASS: accessor value was not nullified
 PASS: non-accessor value was not nullified
-PASS: accessor value was nullified
+PASS: accessor value was not nullified
 PASS: window.pcalled === true
 PASS: window.acalled === true
-PASS: window.bcalled === undefined
+PASS: window.bcalled === true
 PASS: Boolean values correct (0)
 PASS: Boolean values correct (3)
 PASS: Boolean values correct (1,2)