Increase eval compilation cache hits.

src/objects.cc

 // Copyright 2012 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 10479 matching lines @@
                   int scope_position)
       : source_(source),
         shared_(shared),
         language_mode_(language_mode),
         scope_position_(scope_position) { }
 
   bool IsMatch(Object* other) {
     if (!other->IsFixedArray()) return false;
     FixedArray* other_array = FixedArray::cast(other);
     SharedFunctionInfo* shared = SharedFunctionInfo::cast(other_array->get(0));
-    if (shared != shared_) return false;
+    if (shared->script() != shared_->script()) return false;
     int language_unchecked = Smi::cast(other_array->get(2))->value();
     ASSERT(language_unchecked == CLASSIC_MODE ||
            language_unchecked == STRICT_MODE ||
            language_unchecked == EXTENDED_MODE);
     LanguageMode language_mode = static_cast<LanguageMode>(language_unchecked);
     if (language_mode != language_mode_) return false;
     int scope_position = Smi::cast(other_array->get(3))->value();
     if (scope_position != scope_position_) return false;
     String* source = String::cast(other_array->get(1));
     return source->Equals(source_);
@@ skipping 2453 matching lines @@
   set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER);
   set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER);
   set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER);
   set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER);
   set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER);
   set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER);
   set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER);
 }
 
 } }  // namespace v8::internal