Split the TRACE_EVENTs from the LOG/HistogramTimers/TimerEvents functionality.

src/runtime/runtime-compiler.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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/deoptimizer.h"
 #include "src/frames-inl.h"
@@ skipping 119 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_NotifyDeoptimized) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_SMI_ARG_CHECKED(type_arg, 0);
   Deoptimizer::BailoutType type =
       static_cast<Deoptimizer::BailoutType>(type_arg);
   Deoptimizer* deoptimizer = Deoptimizer::Grab(isolate);
   DCHECK(AllowHeapAllocation::IsAllowed());
   TimerEventScope<TimerEventDeoptimizeCode> timer(isolate);
+  TRACE_EVENT0("v8", "V8.DeoptimizeCode");
 
   Handle<JSFunction> function = deoptimizer->function();
   Handle<Code> optimized_code = deoptimizer->compiled_code();
 
   DCHECK(optimized_code->kind() == Code::OPTIMIZED_FUNCTION);
   DCHECK(type == deoptimizer->bailout_type());
 
   // Make sure to materialize objects before causing any allocation.
   JavaScriptFrameIterator it(isolate);
   deoptimizer->MaterializeHeapObjects(&it);
@@ skipping 279 matching lines @@
   DCHECK(is_valid_language_mode(args.smi_at(3)));
   LanguageMode language_mode = static_cast<LanguageMode>(args.smi_at(3));
   DCHECK(args[4]->IsSmi());
   Handle<SharedFunctionInfo> outer_info(args.at<JSFunction>(2)->shared(),
                                         isolate);
   return CompileGlobalEval(isolate, args.at<String>(1), outer_info,
                            language_mode, args.smi_at(4));
 }
 }  // namespace internal
 }  // namespace v8