Make some foo.h headers usable without foo-inl.h header.

src/layout-descriptor-inl.h

 // 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.
 
 #ifndef V8_LAYOUT_DESCRIPTOR_INL_H_
 #define V8_LAYOUT_DESCRIPTOR_INL_H_
 
 #include "src/layout-descriptor.h"
 
 namespace v8 {
@@ skipping 38 matching lines @@
 
   *layout_word_index = field_index / kNumberOfBits;
   CHECK((!IsSmi() && (*layout_word_index < length())) ||
         (IsSmi() && (*layout_word_index < 1)));
 
   *layout_bit_index = field_index % kNumberOfBits;
   return true;
 }
 
 
+LayoutDescriptor* LayoutDescriptor::SetRawData(int field_index) {
+  return SetTagged(field_index, false);
+}
+
+
 LayoutDescriptor* LayoutDescriptor::SetTagged(int field_index, bool tagged) {
   int layout_word_index;
   int layout_bit_index;
 
   if (!GetIndexes(field_index, &layout_word_index, &layout_bit_index)) {
     CHECK(false);
     return this;
   }
   uint32_t layout_mask = static_cast<uint32_t>(1) << layout_bit_index;
 
@@ skipping 173 matching lines @@
   // Object headers do not contain non-tagged fields.
   if (offset_in_bytes < header_size_) return true;
   int field_index = (offset_in_bytes - header_size_) / kPointerSize;
 
   return layout_descriptor_->IsTagged(field_index);
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_LAYOUT_DESCRIPTOR_INL_H_