[runtime] Introduce dedicated JSBoundFunction to represent bound functions.

test/test262/test262.status

 # 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
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@@ skipping 383 matching lines @@
   'intl402/String/prototype/toLocaleUpperCase/special_casing_Turkish': [FAIL],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=4627
   'language/rest-parameters/object-pattern': [FAIL],
   'language/rest-parameters/array-pattern': [FAIL],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=4628
   'language/eval-code/non-definable-function-with-variable': [FAIL],
   'language/eval-code/non-definable-function-with-function': [FAIL],
 
-  # https://bugs.chromium.org/p/v8/issues/detail?id=4629
-  'built-ins/ArrayBuffer/data-allocation-after-object-creation': [FAIL],
-  'built-ins/ArrayBuffer/prototype-from-newtarget': [FAIL],
-
   # https://bugs.chromium.org/p/v8/issues/detail?id=4592
   'built-ins/ArrayBuffer/length-is-absent': [FAIL],
   'built-ins/ArrayBuffer/length-is-not-number': [FAIL],
   'built-ins/ArrayBuffer/positive-integer-length': [FAIL],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=4630
   'language/statements/generators/invoke-as-constructor': [FAIL],
   'language/expressions/generators/invoke-as-constructor': [FAIL],
   'language/expressions/object/method-definition/generator-invoke-ctor': [FAIL],
 
@@ skipping 328 matching lines @@
   'built-ins/decodeURIComponent/S15.1.3.2_A1.12_T2': [SKIP],
   'built-ins/decodeURIComponent/S15.1.3.2_A1.12_T3': [SKIP],
   'built-ins/decodeURIComponent/S15.1.3.2_A1.13_T1': [SKIP],
   'built-ins/decodeURIComponent/S15.1.3.2_A1.2_T1': [SKIP],
   'built-ins/decodeURIComponent/S15.1.3.2_A1.2_T2': [SKIP],
   'built-ins/encodeURI*': [SKIP],
   'intl402/9.2.2': [SKIP],
 }],  # ignition == True and (arch == arm or arch == arm64)
 
 ]