Make --always-opt also optimize top-level code.

test/cctest/test-debug.cc

Index: test/cctest/test-debug.cc
diff --git a/test/cctest/test-debug.cc b/test/cctest/test-debug.cc
index 5929379663103208e80375734c5c3cf9e036d977..6569942c6168c21195770fb470d248e5f4dc2d70 100644
--- a/test/cctest/test-debug.cc
+++ b/test/cctest/test-debug.cc
@@ -6732,6 +6732,10 @@ TEST(Backtrace) {
 
   v8::Debug::SetMessageHandler(BacktraceData::MessageHandler);
 
+  // TODO(3995): This doesn't work with --always-opt because we don't have
+  // correct source positions in optimized code. Enable once we have.
+  i::FLAG_always_opt = false;
+
   const int kBufferSize = 1000;
   uint16_t buffer[kBufferSize];
   const char* scripts_command =
@@ -7062,7 +7066,6 @@ TEST(DeoptimizeDuringDebugBreak) {
                                         frame_function_name_source,
                                         "frame_function_name");
 
-
   // Set a debug event listener which will keep interrupting execution until
   // debug break. When inside function bar it will deoptimize all functions.
   // This tests lazy deoptimization bailout for the stack check, as the first
@@ -7071,13 +7074,12 @@ TEST(DeoptimizeDuringDebugBreak) {
   v8::Debug::SetDebugEventListener(DebugEventBreakDeoptimize);
 
   // Compile and run function bar which will optimize it for some flag settings.
-  v8::Script::Compile(v8::String::NewFromUtf8(
-                          env->GetIsolate(), "function bar(){}; bar()"))->Run();
+  v8::Local<v8::Function> f = CompileFunction(&env, "function bar(){}", "bar");
+  f->Call(v8::Undefined(env->GetIsolate()), 0, NULL);
 
   // Set debug break and call bar again.
   v8::Debug::DebugBreak(env->GetIsolate());
-  v8::Script::Compile(v8::String::NewFromUtf8(env->GetIsolate(), "bar()"))
-      ->Run();
+  f->Call(v8::Undefined(env->GetIsolate()), 0, NULL);
 
   CHECK(debug_event_break_deoptimize_done);