Implement handlified String::Flatten.

src/handles.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 116 matching lines @@
 Handle<JSGlobalProxy> ReinitializeJSGlobalProxy(
     Handle<JSFunction> constructor,
     Handle<JSGlobalProxy> global) {
   CALL_HEAP_FUNCTION(
       constructor->GetIsolate(),
       constructor->GetHeap()->ReinitializeJSGlobalProxy(*constructor, *global),
       JSGlobalProxy);
 }
 
 
-void FlattenString(Handle<String> string) {
-  CALL_HEAP_FUNCTION_VOID(string->GetIsolate(), string->TryFlatten());
-}
-
-
-Handle<String> FlattenGetString(Handle<String> string) {
-  CALL_HEAP_FUNCTION(string->GetIsolate(), string->TryFlatten(), String);
-}
-
-
 Handle<Object> GetProperty(Handle<JSReceiver> obj,
                            const char* name) {
   Isolate* isolate = obj->GetIsolate();
   Handle<String> str = isolate->factory()->InternalizeUtf8String(name);
   ASSERT(!str.is_null());
   return Object::GetPropertyOrElement(obj, str);
 }
 
 
 // Wrappers for scripts are kept alive and cached in weak global
@@ skipping 98 matching lines @@
       // Even if the last line misses a line end, it is counted.
       line_ends->Add(src_len);
       return;
     }
   }
 }
 
 
 Handle<FixedArray> CalculateLineEnds(Handle<String> src,
                                      bool with_last_line) {
-  src = FlattenGetString(src);
+  src = String::Flatten(src);
   // Rough estimate of line count based on a roughly estimated average
   // length of (unpacked) code.
   int line_count_estimate = src->length() >> 4;
   List<int> line_ends(line_count_estimate);
   Isolate* isolate = src->GetIsolate();
   {
     DisallowHeapAllocation no_allocation;  // ensure vectors stay valid.
     // Dispatch on type of strings.
     String::FlatContent content = src->GetFlatContent();
     ASSERT(content.IsFlat());
@@ skipping 432 matching lines @@
                                    Handle<Code> code) {
   heap->EnsureWeakObjectToCodeTable();
   Handle<DependentCode> dep(heap->LookupWeakObjectToCodeDependency(*object));
   dep = DependentCode::Insert(dep, DependentCode::kWeaklyEmbeddedGroup, code);
   CALL_HEAP_FUNCTION_VOID(heap->isolate(),
                           heap->AddWeakObjectToCodeDependency(*object, *dep));
 }
 
 
 } }  // namespace v8::internal