Fix Array.prototype.{reduce,reduceRight} to pass undefined as receiver

src/parser.cc

 // 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 3617 matching lines @@
       if (end_pos <= function_block_pos) {
         // End position greater than end of stream is safe, and hard to check.
         ReportInvalidPreparseData(name, CHECK_OK);
       }
       isolate()->counters()->total_preparse_skipped()->Increment(
           end_pos - function_block_pos);
       // Seek to position just before terminal '}'.
       scanner().SeekForward(end_pos - 1);
       materialized_literal_count = entry.literal_count();
       expected_property_count = entry.property_count();
+      if (entry.strict_mode()) top_scope_->EnableStrictMode();
       only_simple_this_property_assignments = false;
       this_property_assignments = isolate()->factory()->empty_fixed_array();
       Expect(Token::RBRACE, CHECK_OK);
     } else {
       ParseSourceElements(body, Token::RBRACE, CHECK_OK);
 
       materialized_literal_count = lexical_scope.materialized_literal_count();
       expected_property_count = lexical_scope.expected_property_count();
       only_simple_this_property_assignments =
           lexical_scope.only_simple_this_property_assignments();
@@ skipping 1342 matching lines @@
                                    info->is_global(),
                                    info->StrictMode());
     }
   }
 
   info->SetFunction(result);
   return (result != NULL);
 }
 
 } }  // namespace v8::internal