Clear cached line ends array when serializing script object.

src/serialize.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 1729 matching lines @@
 }
 
 
 void Serializer::ObjectSerializer::Serialize() {
   if (FLAG_trace_serializer) {
     PrintF(" Encoding heap object: ");
     object_->ShortPrint();
     PrintF("\n");
   }
 
+  if (object_->IsScript()) {
+    // Clear cached line ends.
+    Object* undefined = serializer_->isolate()->heap()->undefined_value();
+    Script::cast(object_)->set_line_ends(undefined);
+  }
+
   if (object_->IsExternalString()) {
     Heap* heap = serializer_->isolate()->heap();
     if (object_->map() != heap->native_source_string_map()) {
       // Usually we cannot recreate resources for external strings. To work
       // around this, external strings are serialized to look like ordinary
       // sequential strings.
       // The exception are native source code strings, since we can recreate
       // their resources. In that case we fall through and leave it to
       // VisitExternalOneByteString further down.
       SerializeExternalString();
@@ skipping 710 matching lines @@
   return GetHeaderValue(kNumInternalizedStringsOffset);
 }
 
 Vector<const uint32_t> SerializedCodeData::CodeStubKeys() const {
   int reservations_size = GetHeaderValue(kReservationsOffset) * kInt32Size;
   const byte* start = data_ + kHeaderSize + reservations_size;
   return Vector<const uint32_t>(reinterpret_cast<const uint32_t*>(start),
                                 GetHeaderValue(kNumCodeStubKeysOffset));
 }
 } }  // namespace v8::internal