Extend scanner with new Harmony module keywords (under flag).

test/cctest/test-parsing.cc

 // Copyright 2012 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 47 matching lines @@
   i::UnicodeCache unicode_cache;
   i::byte buffer[32];
   for (int i = 0; (key_token = keywords[i]).keyword != NULL; i++) {
     const i::byte* keyword =
         reinterpret_cast<const i::byte*>(key_token.keyword);
     int length = i::StrLength(key_token.keyword);
     CHECK(static_cast<int>(sizeof(buffer)) >= length);
     {
       i::Utf8ToUC16CharacterStream stream(keyword, length);
       i::Scanner scanner(&unicode_cache);
-      // The scanner should parse 'let' as Token::LET for this test.
+      // The scanner should parse Harmony keywords for this test.
       scanner.SetHarmonyScoping(true);
+      scanner.SetHarmonyModules(true);
       scanner.Initialize(&stream);
       CHECK_EQ(key_token.token, scanner.Next());
       CHECK_EQ(i::Token::EOS, scanner.Next());
     }
     // Removing characters will make keyword matching fail.
     {
       i::Utf8ToUC16CharacterStream stream(keyword, length - 1);
       i::Scanner scanner(&unicode_cache);
       scanner.Initialize(&stream);
       CHECK_EQ(i::Token::IDENTIFIER, scanner.Next());
@@ skipping 995 matching lines @@
             termination_data[k],
             context_data[i][1]);
         CHECK(length == kProgramSize);
         i::Handle<i::String> source =
             FACTORY->NewStringFromAscii(i::CStrVector(program.start()));
         TestParserSyncWithFlags(source);
       }
     }
   }
 }