Move some Runtime:: functions and remove runtime.h as include when unnecessary.

src/runtime/runtime-symbol.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/v8.h"
 
 #include "src/arguments.h"
-#include "src/runtime/runtime.h"
 #include "src/runtime/runtime-utils.h"
 
 namespace v8 {
 namespace internal {
 
 RUNTIME_FUNCTION(Runtime_CreateSymbol) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, name, 0);
   RUNTIME_ASSERT(name->IsString() || name->IsUndefined());
@@ skipping 73 matching lines @@
 
 
 RUNTIME_FUNCTION(Runtime_SymbolIsPrivate) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(Symbol, symbol, 0);
   return isolate->heap()->ToBoolean(symbol->is_private());
 }
 }
 }  // namespace v8::internal