Introduce collective --harmony flag.

src/flag-definitions.h

 // Copyright 2011 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 80 matching lines @@
 #define DEFINE_string(nam, def, cmt) FLAG(STRING, const char*, nam, def, cmt)
 #define DEFINE_args(nam, def, cmt) FLAG(ARGS, JSArguments, nam, def, cmt)
 
 //
 // Flags in all modes.
 //
 #define FLAG FLAG_FULL
 
 // Flags for experimental language features.
 DEFINE_bool(harmony_typeof, false, "enable harmony semantics for typeof")
+DEFINE_bool(harmony_scoping, false, "enable harmony block scoping")
 DEFINE_bool(harmony_proxies, false, "enable harmony proxies")
 DEFINE_bool(harmony_weakmaps, false, "enable harmony weak maps")
-DEFINE_bool(harmony_block_scoping, false, "enable harmony block scoping")
+DEFINE_bool(harmony, false, "enable all harmony features")
 
 // Flags for experimental implementation features.
 DEFINE_bool(unbox_double_arrays, true, "automatically unbox arrays of doubles")
 DEFINE_bool(smi_only_arrays, false, "tracks arrays with only smi values")
 DEFINE_bool(string_slices, false, "use string slices")
 
 DEFINE_bool(clever_optimizations,
             true,
             "Optimize object size, Array shift, DOM strings and string +")
 
@@ skipping 425 matching lines @@
 #undef FLAG
 
 #undef DEFINE_bool
 #undef DEFINE_int
 #undef DEFINE_string
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META