Make --always-opt also optimize toplevel code.

test/cctest/test-decls.cc

 // Copyright 2007-2008 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
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 //     * Redistributions in binary form must reproduce the above
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@@ skipping 634 matching lines @@
 
 
 TEST(CrossScriptReferencesHarmony) {
   i::FLAG_use_strict = true;
   i::FLAG_harmony_scoping = true;
   i::FLAG_harmony_modules = true;
 
   v8::Isolate* isolate = CcTest::isolate();
   HandleScope scope(isolate);
 
+  // TODO(rossberg): Reparsing of top-level code does not work in the presence
+  // of harmony scoping and multiple scripts. This can already be reproduced
+  // without --always-opt by relying on OSR alone.
+  //
+  // ./d8 --harmony-scoping
+  //      -e "'use strict'; let a = 1;"
+  //      -e "'use strict'; let b = 2; for (var i = 0; i < 100000; ++i) b++;"
+  //
+  // For now we just disable --always-opt for this test.
+  i::FLAG_always_opt = false;
+
   const char* decs[] = {
     "var x = 1; x", "x", "this.x",
     "function x() { return 1 }; x()", "x()", "this.x()",
     "let x = 1; x", "x", "this.x",
     "const x = 1; x", "x", "this.x",
     "module x { export let a = 1 }; x.a", "x.a", "this.x.a",
     NULL
   };
 
   for (int i = 0; decs[i] != NULL; i += 3) {
@@ skipping 41 matching lines @@
                     Number::New(CcTest::isolate(), 1));
       // TODO(rossberg): All tests should actually be errors in Harmony,
       // but we currently do not detect the cases where the first declaration
       // is not lexical.
       context.Check(seconds[j],
                     i < 2 ? EXPECT_RESULT : EXPECT_ERROR,
                     Number::New(CcTest::isolate(), 2));
     }
   }
 }