Do not store fp and sp values in TickSample

test/cctest/test-log-stack-tracer.cc

 // Copyright 2011 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 34 matching lines @@
 using v8::Object;
 using v8::Script;
 using v8::String;
 using v8::Value;
 
 using v8::internal::byte;
 using v8::internal::Address;
 using v8::internal::Handle;
 using v8::internal::Isolate;
 using v8::internal::JSFunction;
+using v8::internal::RegisterState;
 using v8::internal::TickSample;
 
 
 static struct {
   TickSample* sample;
 } trace_env = { NULL };
 
 
 static void InitTraceEnv(TickSample* sample) {
   trace_env.sample = sample;
 }
 
 
 static void DoTrace(Address fp) {
-  trace_env.sample->fp = fp;
+  RegisterState regs;
+  regs.fp = fp;
   // sp is only used to define stack high bound
-  trace_env.sample->sp =
+  regs.sp =
       reinterpret_cast<Address>(trace_env.sample) - 10240;
-  trace_env.sample->Trace(Isolate::Current());
+  trace_env.sample->Init(Isolate::Current(), regs);
 }
 
 
 // Hide c_entry_fp to emulate situation when sampling is done while
 // pure JS code is being executed
 static void DoTraceHideCEntryFPAddress(Address fp) {
   v8::internal::Address saved_c_frame_fp =
       *(Isolate::Current()->c_entry_fp_address());
   CHECK(saved_c_frame_fp);
   *(Isolate::Current()->c_entry_fp_address()) = 0;
@@ skipping 302 matching lines @@
   CcTest::InitializeVM(TRACE_EXTENSION);
   v8::HandleScope scope(CcTest::isolate());
   CHECK_EQ(0, GetJsEntrySp());
   CompileRun("a = 1; b = a + 1;");
   CHECK_EQ(0, GetJsEntrySp());
   CompileRun("js_entry_sp();");
   CHECK_EQ(0, GetJsEntrySp());
   CompileRun("js_entry_sp_level2();");
   CHECK_EQ(0, GetJsEntrySp());
 }