Avoid converting key to string for deleting of elements

test/test262-es6/test262-es6.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
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 [
 [ALWAYS, {
   ############################### BUGS ###################################
 
   # BUG(v8:3455)
   'intl402/11.2.3_b': [FAIL],
   'intl402/12.2.3_b': [FAIL],
 
+  # BUG(v8:4267)
+  'built-ins/Object/defineProperty/15.2.3.6-4-116': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-117': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-168': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-169': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-170': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-172': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-173': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-174': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-176': [FAIL],
+  'built-ins/Object/defineProperty/15.2.3.6-4-177': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-112': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-113': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-164': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-165': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-166': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-168': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-169': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-170': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-172': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-173': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-175': [FAIL],
+  'built-ins/Object/defineProperties/15.2.3.7-6-a-176': [FAIL],
+
   # Unicode canonicalization is not available with i18n turned off.
   'built-ins/String/prototype/localeCompare/15.5.4.9_CE': [['no_i18n', SKIP]],
 
   ###################### NEEDS INVESTIGATION #######################
 
   # Possibly same cause as S8.5_A2.1, below: floating-point tests.
   'built-ins/Math/sin/S15.8.2.16_A7': [PASS, FAIL_OK],
   'built-ins/Math/tan/S15.8.2.18_A7': [PASS, FAIL_OK],
   'built-ins/Math/cos/S15.8.2.7_A7': [PASS, FAIL_OK],
 
@@ skipping 755 matching lines @@
 
   # BUG(3251225): Tests that timeout with --nocrankshaft.
   'built-ins/decodeURI/S15.1.3.1_A2.4_T1': [SKIP],
   'built-ins/decodeURI/S15.1.3.1_A2.5_T1': [SKIP],
   'built-ins/decodeURIComponent/S15.1.3.2_A2.4_T1': [SKIP],
   'built-ins/decodeURIComponent/S15.1.3.2_A2.5_T1': [SKIP],
   'built-ins/encodeURI/S15.1.3.3_A2.3_T1': [SKIP],
   'built-ins/encodeURIComponent/S15.1.3.4_A2.3_T1': [SKIP],
 }],  # 'arch == arm or arch == mipsel or arch == mips or arch == arm64'
 ]