Implemented specialized stubs for API getters. This includes a number...

src/top.h

Index: src/top.h
===================================================================
--- src/top.h	(revision 3149)
+++ src/top.h	(working copy)
@@ -170,6 +170,10 @@
     return &thread_local_.external_caught_exception_;
   }
 
+  static Object** scheduled_exception_address() {
+    return &thread_local_.scheduled_exception_;
+  }
+
   static Object* scheduled_exception() {
     ASSERT(has_scheduled_exception());
     return thread_local_.scheduled_exception_;