Revert preparser duplicate detection.

test/preparser/duplicate-parameter.pyt

Index: test/preparser/duplicate-parameter.pyt
diff --git a/test/preparser/duplicate-parameter.pyt b/test/preparser/duplicate-parameter.pyt
deleted file mode 100644
index 4dfb7d691feead4961cee649bd392e114af88c7b..0000000000000000000000000000000000000000
--- a/test/preparser/duplicate-parameter.pyt
+++ /dev/null
@@ -1,90 +0,0 @@
-# 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
-#       with the distribution.
-#     * Neither the name of Google Inc. nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# Templatated tests with duplicate parameter names.
-
-# ----------------------------------------------------------------------
-# Constants and utility functions
-
-# A template that performs the same strict-mode test in different
-# scopes (global scope, function scope, and nested function scope),
-# and in non-strict mode too.
-def DuplicateParameterTest(name, source):
-  expectation = "strict_param_dupe"
-  non_selfstrict = {"selfstrict":"", "id":"selfnormal"}
-
-  Template(name, '"use strict";\n' + source)(non_selfstrict, expectation)
-  Template(name + '-infunc',
-           'function foo() {\n "use strict";\n' + source +'\n}\n')(
-               non_selfstrict, expectation)
-  Template(name + '-infunc2',
-           'function foo() {\n "use strict";\n  function bar() {\n' +
-           source +'\n }\n}\n')(non_selfstrict, expectation)
-
-  selfstrict = {"selfstrict": "\"use strict\";", "id": "selfstrict"}
-  nestedstrict = {"selfstrict": "function bar(){\"use strict\";}",
-                  "id": "nestedstrict"}
-  selfstrictnestedclean = {"selfstrict": """
-      "use strict";
-      function bar(){}
-    """, "id": "selfstrictnestedclean"}
-  selftest = Template(name + '-$id', source)
-  selftest(selfstrict, expectation)
-  selftest(selfstrictnestedclean, expectation)
-  selftest(nestedstrict, None)
-  selftest(non_selfstrict, None)
-
-
-# ----------------------------------------------------------------------
-# Test templates
-
-DuplicateParameterTest("dups", """
-  function foo(a, a) { $selfstrict }
-""");
-
-DuplicateParameterTest("dups-apart", """
-  function foo(a, b, c, d, e, f, g, h, i, j, k, l, m, n, a) { $selfstrict }
-""");
-
-DuplicateParameterTest("dups-escaped", """
-  function foo(\u0061, b, c, d, e, f, g, h, i, j, k, l, m, n, a) { $selfstrict }
-""");
-
-DuplicateParameterTest("triples", """
-  function foo(a, b, c, d, e, f, g, h, a, i, j, k, l, m, n, a) { $selfstrict }
-""");
-
-DuplicateParameterTest("escapes", """
-  function foo(a, \u0061) { $selfstrict }
-""");
-
-DuplicateParameterTest("long-names", """
-  function foo(arglebargleglopglyfarglebargleglopglyfarglebargleglopglyfa,
-               arglebargleglopglyfarglebargleglopglyfarglebargleglopglyfa) {
-    $selfstrict
-  }
-""");