[destructuring] Implement spread binding patterns.

src/ast-value-factory.h

 // Copyright 2014 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 216 matching lines @@
 
   // Internalized value (empty before internalized).
   Handle<Object> value_;
 };
 
 
 // For generating constants.
 #define STRING_CONSTANTS(F)                                                \
   F(anonymous_function, "(anonymous function)")                            \
   F(arguments, "arguments")                                                \
+  F(concat_iterable_to_array, "$concatIterableToArray")                    \
   F(constructor, "constructor")                                            \
   F(default, "default")                                                    \
   F(done, "done")                                                          \
   F(dot, ".")                                                              \
   F(dot_for, ".for")                                                       \
   F(dot_generator, ".generator")                                           \
   F(dot_generator_object, ".generator_object")                             \
   F(dot_iterator, ".iterator")                                             \
   F(dot_module, ".module")                                                 \
   F(dot_result, ".result")                                                 \
@@ skipping 119 matching lines @@
 #define F(name) AstValue* name##_;
   OTHER_CONSTANTS(F)
 #undef F
 };
 } }  // namespace v8::internal
 
 #undef STRING_CONSTANTS
 #undef OTHER_CONSTANTS
 
 #endif  // V8_AST_VALUE_FACTORY_H_