Avoid some crashes when running without snapshots.

src/liveedit.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1004 matching lines @@
 
   // Iterate over all roots. Stack frames may have pointer into original code,
   // so temporary replace the pointers with offset numbers
   // in prologue/epilogue.
   {
     HEAP->IterateStrongRoots(&visitor, VISIT_ALL);
   }
 
   // Now iterate over all pointers of all objects, including code_target
   // implicit pointers.
-  for (HeapObject* obj = iterator.Next(); obj != NULL; obj = iterator.Next()) {
+  for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
     obj->Iterate(&visitor);
   }
 
   visitor.Replace(substitution);
 }
 
 
 // Check whether the code is natural function code (not a lazy-compile stub
 // code).
 static bool IsJSFunctionCode(Code* code) {
@@ skipping 751 matching lines @@
 
 bool LiveEditFunctionTracker::IsActive(Isolate* isolate) {
   return false;
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 
 } }  // namespace v8::internal