Add --es-staging flag

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
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 539 matching lines @@
   }
 
   // Use the prototype as the holder for the interceptors.
   virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
     return function->PrototypeTemplate();
   }
 };
 
 
 TEST(ExistsInPrototype) {
-  i::FLAG_es52_globals = true;
   HandleScope scope(CcTest::isolate());
 
   // Sanity check to make sure that the holder of the interceptor
   // really is the prototype object.
   { ExistsInPrototypeContext context;
     context.Check("this.x = 87; this.x",
                   0,
                   0,
                   0,
                   EXPECT_RESULT, Number::New(CcTest::isolate(), 87));
@@ skipping 42 matching lines @@
   }
 
   // Use the prototype as the holder for the interceptors.
   virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
     return function->PrototypeTemplate();
   }
 };
 
 
 TEST(AbsentInPrototype) {
-  i::FLAG_es52_globals = true;
   v8::V8::Initialize();
   HandleScope scope(CcTest::isolate());
 
   { AbsentInPrototypeContext context;
     context.Check("if (false) { var x = 0; }; x",
                   0,
                   0,
                   0,
                   EXPECT_RESULT, Undefined(CcTest::isolate()));
   }
@@ skipping 27 matching lines @@
   virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
     return hidden_proto_->InstanceTemplate();
   }
 
  private:
   Local<FunctionTemplate> hidden_proto_;
 };
 
 
 TEST(ExistsInHiddenPrototype) {
-  i::FLAG_es52_globals = true;
   HandleScope scope(CcTest::isolate());
 
   { ExistsInHiddenPrototypeContext context;
     context.Check("var x; x",
                   1,  // access
                   0,
                   2,  // declaration + initialization
                   EXPECT_EXCEPTION);  // x is not defined!
   }
 
@@ skipping 184 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));
     }
   }
 }