Upgrade to V8 3.6

Merge V8 at 3.6.6.11

Simple merge required updates to makefiles only.

Bug: 5688872
Change-Id: Ib38b7ffbcd409585f6cb6fccc59c767029cecc77
diff --git a/test/mjsunit/regress/regress-720.js b/test/mjsunit/regress/regress-720.js
index 97e1284..267b32d 100644
--- a/test/mjsunit/regress/regress-720.js
+++ b/test/mjsunit/regress/regress-720.js
@@ -27,7 +27,7 @@
 
 // This regression test is used to ensure that Object.defineProperty
 // keeps the existing value of the writable flag if none is given
-// in the provided descriptor. 
+// in the provided descriptor.
 // See: http://code.google.com/p/v8/issues/detail?id=720
 
 var o = {x: 10};