Merge isolates to bleeding_edge.

src/v8.h

Index: src/v8.h
===================================================================
--- src/v8.h	(revision 7267)
+++ src/v8.h	(working copy)
@@ -86,6 +86,7 @@
   static bool UseCrankshaft() { return use_crankshaft_; }
   static void DisableCrankshaft() { use_crankshaft_ = false; }
   // To be dead you have to have lived
+  // TODO(isolates): move IsDead to Isolate.
   static bool IsDead() { return has_fatal_error_ || has_been_disposed_; }
   static void SetFatalError();
 
@@ -94,12 +95,12 @@
                                       bool take_snapshot = false);
 
   // Random number generation support. Not cryptographically safe.
-  static uint32_t Random();
+  static uint32_t Random(Isolate* isolate);
   // We use random numbers internally in memory allocation and in the
   // compilers for security. In order to prevent information leaks we
   // use a separate random state for internal random number
   // generation.
-  static uint32_t RandomPrivate();
+  static uint32_t RandomPrivate(Isolate* isolate);
   static Object* FillHeapNumberWithRandom(Object* heap_number);
 
   // Idle notification directly from the API.