Revert "Unify paren handling in Parser and PreParser."

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 1780 matching lines @@
 
   const char* statement_data[] = {
     "mylabel: while(true) { break mylabel; }",
     "eval: while(true) { break eval; }",
     "arguments: while(true) { break arguments; }",
     NULL
   };
 
   RunParserSyncTest(context_data, statement_data, kSuccess);
 }
-
-
-TEST(ErrorsParenthesizedLabels) {
-  // Parenthesized identifiers shouldn't be recognized as labels.
-  const char* context_data[][2] = {
-    { "", ""},
-    { "function test_func() {", "}" },
-    { NULL, NULL }
-  };
-
-  const char* statement_data[] = {
-    "(mylabel): while(true) { break mylabel; }",
-    NULL
-  };
-
-  RunParserSyncTest(context_data, statement_data, kError);
-}
-
-
-TEST(NoErrorsParenthesizedDirectivePrologue) {
-  // Parenthesized directive prologue shouldn't be recognized.
-  const char* context_data[][2] = {
-    { "", ""},
-    { NULL, NULL }
-  };
-
-  const char* statement_data[] = {
-    "(\"use strict\"); var eval;",
-    NULL
-  };
-
-  RunParserSyncTest(context_data, statement_data, kSuccess);
-}