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

test/cctest/compiler/function-tester.h

Index: test/cctest/compiler/function-tester.h
diff --git a/test/cctest/compiler/function-tester.h b/test/cctest/compiler/function-tester.h
index 3d6e3ffe906831c1b604677c9d5b8c4765789f0c..8b48e9fe901f07acfa17519d336db489286db465 100644
--- a/test/cctest/compiler/function-tester.h
+++ b/test/cctest/compiler/function-tester.h
@@ -160,6 +160,7 @@ class FunctionTester : public InitializedHandleScope {
     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()));
@@ -177,11 +178,8 @@ class FunctionTester : public InitializedHandleScope {
 
     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());