Ship ES2015 sloppy-mode const semantics

test/cctest/compiler/test-run-jsops.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 "test/cctest/compiler/function-tester.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 377 matching lines @@
 TEST(GlobalLoad) {
   FunctionTester T("(function() { return g; })");
 
   T.CheckThrows(T.undefined(), T.undefined());
   CompileRun("var g = 23;");
   T.CheckCall(T.Val(23));
 }
 
 
 TEST(GlobalStoreSloppy) {
+  FLAG_legacy_const = true;
   FunctionTester T("(function(a,b) { g = a + b; return g; })");
 
   T.CheckCall(T.Val(33), T.Val(22), T.Val(11));
   CompileRun("delete g");
   CompileRun("const g = 23");
   T.CheckCall(T.Val(23), T.Val(55), T.Val(44));
 }
 
 
 TEST(GlobalStoreStrict) {
@@ skipping 127 matching lines @@
       "})";
   FunctionTester T(src);
 
   T.CheckCall(T.Val(65), T.Val(23), T.Val(42));
   T.CheckCall(T.Val("ab"), T.Val("a"), T.Val("b"));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8