bug 530157 and bug 544603 - disabling for now tests based on the GC timing. The background GC thread made that unreliable.

js/src/tests/js1_5/GC/jstests.list

@@ -19,8 +19,8 @@ script regress-341877-02.js
 skip script regress-346794.js # slow, killed
 script regress-348532.js
 script regress-352606.js
-script regress-383269-01.js
-script regress-383269-02.js
+skip script regress-383269-01.js # unreliable - based on GC timing
+skip script regress-383269-02.js # unreliable - based on GC timing
 script regress-390078.js
 script regress-418128.js
 script regress-440558.js

js/src/tests/js1_5/Regress/jstests.list

@@ -228,7 +228,7 @@ script regress-396684.js
 script regress-398085-01.js
 script regress-398085-02.js
 script regress-398609.js
-script regress-404755.js
+skip script regress-404755.js # unreliable - based on GC timing
 script regress-406769.js
 script regress-407024.js
 script regress-407323.js