Reland of "Store SharedFunctionInfos of a Script in a FixedArray indexed by their ID"

src/factory.cc

 // Copyright 2014 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/factory.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
 #include "src/ast/ast.h"
 #include "src/base/bits.h"
@@ skipping 149 matching lines @@
                                                    PretenureFlag pretenure) {
   DCHECK(0 <= size);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateFixedArrayWithFiller(size,
                                                       pretenure,
                                                       *the_hole_value()),
       FixedArray);
 }
 
-
 Handle<FixedArray> Factory::NewUninitializedFixedArray(int size) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateUninitializedFixedArray(size),
       FixedArray);
 }
 
 
 Handle<FixedArrayBase> Factory::NewFixedDoubleArray(int size,
                                                     PretenureFlag pretenure) {
@@ skipping 870 matching lines @@
   script->set_name(heap->undefined_value());
   script->set_id(isolate()->heap()->NextScriptId());
   script->set_line_offset(0);
   script->set_column_offset(0);
   script->set_context_data(heap->undefined_value());
   script->set_type(Script::TYPE_NORMAL);
   script->set_wrapper(heap->undefined_value());
   script->set_line_ends(heap->undefined_value());
   script->set_eval_from_shared(heap->undefined_value());
   script->set_eval_from_position(0);
-  script->set_shared_function_infos(Smi::kZero);
+  script->set_shared_function_infos(*empty_fixed_array(), SKIP_WRITE_BARRIER);
   script->set_flags(0);
 
   heap->set_script_list(*WeakFixedArray::Add(script_list(), script));
   return script;
 }
 
 
 Handle<Foreign> Factory::NewForeign(Address addr, PretenureFlag pretenure) {
   CALL_HEAP_FUNCTION(isolate(),
                      isolate()->heap()->AllocateForeign(addr, pretenure),
@@ skipping 1708 matching lines @@
       Handle<JSFixedArrayIterator>::cast(NewJSObjectFromMap(map));
   iterator->set_initial_next(*next);
   iterator->set_array(*array);
   iterator->set_index(0);
   iterator->InObjectPropertyAtPut(JSFixedArrayIterator::kNextIndex, *next);
   return iterator;
 }
 
 }  // namespace internal
 }  // namespace v8