[turbofan] Enable deoptimization for non-asm.js TurboFan code.

test/cctest/compiler/function-tester.h

 // 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.
 
 #ifndef V8_CCTEST_COMPILER_FUNCTION_TESTER_H_
 #define V8_CCTEST_COMPILER_FUNCTION_TESTER_H_
 
 #include "src/v8.h"
 #include "test/cctest/cctest.h"
 
@@ skipping 142 matching lines @@
   Handle<Object> true_value() { return isolate->factory()->true_value(); }
 
   Handle<Object> false_value() { return isolate->factory()->false_value(); }
 
   Handle<JSFunction> Compile(Handle<JSFunction> function) {
 // TODO(titzer): make this method private.
 #if V8_TURBOFAN_TARGET
     Zone zone;
     ParseInfo parse_info(&zone, function);
     CompilationInfo info(&parse_info);
+    info.MarkAsDeoptimizationEnabled();
 
     CHECK(Parser::ParseStatic(info.parse_info()));
     info.SetOptimizing(BailoutId::None(), Handle<Code>(function->code()));
     if (flags_ & CompilationInfo::kContextSpecializing) {
       info.MarkAsContextSpecializing();
     }
     if (flags_ & CompilationInfo::kInliningEnabled) {
       info.MarkAsInliningEnabled();
     }
     if (flags_ & CompilationInfo::kTypingEnabled) {
       info.MarkAsTypingEnabled();
     }
     CHECK(Compiler::Analyze(info.parse_info()));
     CHECK(Compiler::EnsureDeoptimizationSupport(&info));
 
     Pipeline pipeline(&info);
     Handle<Code> code = pipeline.GenerateCode();
-    if (FLAG_turbo_deoptimization) {
-      info.context()->native_context()->AddOptimizedCode(*code);
-    }
-
     CHECK(!code.is_null());
+    info.context()->native_context()->AddOptimizedCode(*code);
     function->ReplaceCode(*code);
 #elif USE_CRANKSHAFT
     Handle<Code> unoptimized = Handle<Code>(function->code());
     Handle<Code> code = Compiler::GetOptimizedCode(function, unoptimized,
                                                    Compiler::NOT_CONCURRENT);
     CHECK(!code.is_null());
 #if ENABLE_DISASSEMBLER
     if (FLAG_print_opt_code) {
       CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
       code->Disassemble("test code", tracing_scope.file());
@@ skipping 34 matching lines @@
     CHECK(!code.is_null());
     function->ReplaceCode(*code);
     return function;
   }
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_CCTEST_COMPILER_FUNCTION_TESTER_H_