Create frequently used symbols in the vm isolate

vm/code_patcher_x64_test.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
 #include "vm/code_patcher.h"
 #include "vm/dart_entry.h"
 #include "vm/instructions.h"
 #include "vm/native_entry.h"
 #include "vm/native_entry_test.h"
 #include "vm/stub_code.h"
+#include "vm/symbols.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 CODEGEN_TEST_GENERATE(NativePatchStaticCall, test) {
   SequenceNode* node_seq = test->node_sequence();
   const int num_params = 0;
   const bool has_opt_params = false;
   const String& native_name =
-      String::ZoneHandle(String::NewSymbol("TestStaticCallPatching"));
+      String::ZoneHandle(Symbols::New("TestStaticCallPatching"));
   NativeFunction native_function = reinterpret_cast<NativeFunction>(
       NATIVE_ENTRY_FUNCTION(TestStaticCallPatching));
   node_seq->Add(new ReturnNode(Scanner::kDummyTokenIndex,
                                new NativeBodyNode(Scanner::kDummyTokenIndex,
                                                   native_name,
                                                   native_function,
                                                   num_params,
                                                   has_opt_params,
                                                   false)));
 }
 
 CODEGEN_TEST2_GENERATE(PatchStaticCall, function, test) {
   SequenceNode* node_seq = test->node_sequence();
   ArgumentListNode* arguments = new ArgumentListNode(Scanner::kDummyTokenIndex);
   node_seq->Add(new ReturnNode(Scanner::kDummyTokenIndex,
                                new StaticCallNode(Scanner::kDummyTokenIndex,
                                                   function, arguments)));
 }
 
 CODEGEN_TEST2_RUN(PatchStaticCall, NativePatchStaticCall, Instance::null());
 
 #define __ assembler->
 
 ASSEMBLER_TEST_GENERATE(IcDataAccess, assembler) {
   const String& function_name =
-      String::ZoneHandle(String::NewSymbol("callerFunction"));
+      String::ZoneHandle(Symbols::New("callerFunction"));
   const Function& function = Function::ZoneHandle(
       Function::New(function_name, RawFunction::kRegularFunction,
                     true, false, 0));
 
   const String& target_name = String::Handle(String::New("targetFunction"));
   ICData& ic_data = ICData::ZoneHandle(
       ICData::New(function, target_name, 15, 1));
 
   __ LoadObject(RBX, ic_data);
   __ LoadObject(R10, DartEntry::ArgumentsDescriptor(1, Array::Handle()));
@@ skipping 10 matching lines @@
       CodePatcher::GetInstanceCallIcDataAt(return_address));
   EXPECT_STREQ("targetFunction",
       String::Handle(ic_data.target_name()).ToCString());
   EXPECT_EQ(1, ic_data.num_args_tested());
   EXPECT_EQ(0, ic_data.NumberOfChecks());
 }
 
 }  // namespace dart
 
 #endif  // TARGET_ARCH_X64