Move bootstrap scripts and token streams to the VM isolate so that they become read only objects. T…

runtime/vm/dart.cc

Index: runtime/vm/dart.cc
diff --git a/runtime/vm/dart.cc b/runtime/vm/dart.cc
index d14ba97bc2d846093787a9a39430bcb36b16ddbd..4b6b5fbfd78d0fae4e3889c7489b90ecd7c10267 100644
--- a/runtime/vm/dart.cc
+++ b/runtime/vm/dart.cc
@@ -156,7 +156,6 @@ const char* Dart::InitOnce(const uint8_t* vm_isolate_snapshot,
         OS::Print("VM Isolate: Number of symbols : %" Pd "\n", size);
         OS::Print("VM Isolate: Symbol table capacity : %" Pd "\n", capacity);
       }
-      Symbols::InitOnceFromSnapshot(vm_isolate_);
     } else {
       Symbols::InitOnce(vm_isolate_);
     }