Merge up to 8597 to experimental/gc from the bleeding edge.

src/bootstrapper.h

Index: src/bootstrapper.h
===================================================================
--- src/bootstrapper.h	(revision 8618)
+++ src/bootstrapper.h	(working copy)
@@ -168,8 +168,9 @@
 class NativesExternalStringResource
     : public v8::String::ExternalAsciiStringResource {
  public:
-  explicit NativesExternalStringResource(Bootstrapper* bootstrapper,
-                                         const char* source);
+  NativesExternalStringResource(Bootstrapper* bootstrapper,
+                                const char* source,
+                                size_t length);
 
   const char* data() const {
     return data_;