Revert of [es6] Object.getPrototypeOf should work with values

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 283 matching lines @@
   'intl402/ch12/12.2/12.2.2_L15': [FAIL],
   'intl402/ch12/12.3/12.3.2_1_a_L15': [FAIL],
   'intl402/ch12/12.3/12.3.2_L15': [FAIL],
   'intl402/ch12/12.3/12.3.3_L15': [FAIL],
   'intl402/ch13/13.1/13.1.1_L15': [FAIL],
   'intl402/ch13/13.2/13.2.1_L15': [FAIL],
   'intl402/ch13/13.3/13.3.1_L15': [FAIL],
   'intl402/ch13/13.3/13.3.2_L15': [FAIL],
   'intl402/ch13/13.3/13.3.3_L15': [FAIL],
 
-  # Object.getPrototypeOf wraps primitive values in ES6.
-  'ch15/15.2/15.2.3/15.2.3.2/15.2.3.2-1-3': [FAIL],
-  'ch15/15.2/15.2.3/15.2.3.2/15.2.3.2-1-4': [FAIL],
-  'ch15/15.2/15.2.3/15.2.3.2/15.2.3.2-1': [FAIL],
-
   ############################ SKIPPED TESTS #############################
 
   # These tests take a looong time to run in debug mode.
   'ch15/15.1/15.1.3/15.1.3.1/S15.1.3.1_A2.5_T1': [PASS, ['mode == debug', SKIP]],
   'ch15/15.1/15.1.3/15.1.3.2/S15.1.3.2_A2.5_T1': [PASS, ['mode == debug', SKIP]],
 }],  # ALWAYS
 
 ['system == macos', {
   'intl402/ch11/11.3/11.3.2_TRP': [FAIL],
   'intl402/ch09/9.2/9.2.5_11_g_ii_2': [FAIL],
 }],  # system == macos
 
 ['arch == arm or arch == mipsel or arch == mips or arch == arm64 or arch == mips64el', {
 
   # TODO(mstarzinger): Causes stack overflow on simulators due to eager
   # compilation of parenthesized function literals. Needs investigation.
   'ch13/13.2/S13.2.1_A1_T1': [SKIP],
 
   # BUG(3251225): Tests that timeout with --nocrankshaft.
   'ch15/15.1/15.1.3/15.1.3.1/S15.1.3.1_A2.4_T1': [SKIP],
   'ch15/15.1/15.1.3/15.1.3.1/S15.1.3.1_A2.5_T1': [SKIP],
   'ch15/15.1/15.1.3/15.1.3.2/S15.1.3.2_A2.4_T1': [SKIP],
   'ch15/15.1/15.1.3/15.1.3.2/S15.1.3.2_A2.5_T1': [SKIP],
   'ch15/15.1/15.1.3/15.1.3.3/S15.1.3.3_A2.3_T1': [SKIP],
   'ch15/15.1/15.1.3/15.1.3.4/S15.1.3.4_A2.3_T1': [SKIP],
 }],  # 'arch == arm or arch == mipsel or arch == mips or arch == arm64'
 ]