Push version 2.5.7 to trunk....

ChangeLog

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 5846)
+++ ChangeLog	(working copy)
@@ -1,3 +1,27 @@
+2010-11-18: Version 2.5.7
+
+        Fixed obscure evaluation order bug (issue 931).
+
+        Split the random number state between JavaScript and the private API.
+
+        Fixed performance bug causing GCs when generating stack traces on
+        code from very large scripts.
+
+        Fixed bug in parser that allowed (foo):42 as a labelled statement
+        (issue 918).
+
+        Provide more accurate results about used heap size via
+        GetHeapStatistics.
+
+        Allow build-time customization of the max semispace size.
+
+        Made String.prototype.split honor limit when separator is empty
+        (issue 929).
+
+        Added missing failure check after expecting an identifier in
+        preparser (Chromium issue 62639).
+
+
 2010-11-10: Version 2.5.6
 
         Added support for VFP rounding modes to the ARM simulator.