Revert of [es6] stage sticky regexps and RegExp.prototype.flags.

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
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 500 matching lines @@
   'built-ins/RegExp/prototype/unicode/this-regexp': [FAIL],
   'built-ins/RegExp/unicode_identity_escape': [FAIL],
   'language/literals/regexp/u-unicode-esc': [FAIL],
   'language/literals/regexp/u-surrogate-pairs': [FAIL],
   'language/literals/regexp/u-case-mapping': [FAIL],
   'language/literals/regexp/u-astral': [FAIL],
 
   # https://code.google.com/p/v8/issues/detail?id=4342
   'built-ins/RegExp/prototype/exec/get-sticky-coerce': [FAIL],
   'built-ins/RegExp/prototype/exec/get-sticky-err': [FAIL],
+  'built-ins/RegExp/prototype/exec/y-fail-lastindex': [FAIL],
   'built-ins/RegExp/prototype/exec/y-fail-lastindex-no-write': [FAIL],
+  'built-ins/RegExp/prototype/exec/y-fail-return': [FAIL],
+  'built-ins/RegExp/prototype/exec/y-fail-lastindex': [FAIL],
+  'built-ins/RegExp/prototype/exec/y-init-lastindex': [FAIL],
+  'built-ins/RegExp/prototype/exec/y-set-lastindex': [FAIL],
   'built-ins/RegExp/prototype/sticky/prop-desc': [FAIL],
   'built-ins/RegExp/prototype/sticky/this-invalid-obj': [FAIL],
   'built-ins/RegExp/prototype/sticky/this-non-obj': [FAIL],
+  'built-ins/RegExp/prototype/sticky/this-regexp': [FAIL],
   'built-ins/RegExp/prototype/test/get-sticky-coerce': [FAIL],
   'built-ins/RegExp/prototype/test/get-sticky-err': [FAIL],
   'built-ins/RegExp/prototype/test/y-fail-lastindex-no-write': [FAIL],
+  'built-ins/RegExp/prototype/test/y-fail-return': [FAIL],
+  'built-ins/RegExp/prototype/test/y-fail-lastindex': [FAIL],
+  'built-ins/RegExp/prototype/test/y-init-lastindex': [FAIL],
+  'built-ins/RegExp/prototype/test/y-set-lastindex': [FAIL],
   'built-ins/RegExp/valid-flags-y': [FAIL],
 
   # https://code.google.com/p/v8/issues/detail?id=4305
   # SKIP rather than FAIL some tests, as they may check for an exception which
   # happens to be thrown for some other reason (e.g,
   # built-ins/RegExp/prototype/Symbol.match/builtin-failure-set-lastindex-err)
   'built-ins/RegExp/prototype/Symbol.match/*': [SKIP],
   'built-ins/Symbol/match/prop-desc': [FAIL],
   'built-ins/String/prototype/endsWith/return-abrupt-from-searchstring-regexp-test': [FAIL],
   'built-ins/String/prototype/includes/return-abrupt-from-searchstring-regexp-test': [FAIL],
@@ skipping 16 matching lines @@
   'built-ins/String/prototype/search/cstm-search-invocation': [FAIL],
   'built-ins/String/prototype/search/invoke-builtin-search': [FAIL],
 
   # https://code.google.com/p/v8/issues/detail?id=4345
   'built-ins/RegExp/prototype/Symbol.split/*': [SKIP],
   'built-ins/Symbol/split/prop-desc': [FAIL],
   'built-ins/String/prototype/split/cstm-split-invocation': [FAIL],
   'built-ins/String/prototype/split/cstm-split-get-err': [FAIL],
 
   # https://code.google.com/p/v8/issues/detail?id=4346
-  'built-ins/RegExp/prototype/flags/name': [FAIL],
-  'built-ins/RegExp/prototype/flags/y-attr-err': [FAIL],
-  'built-ins/RegExp/prototype/flags/u': [FAIL],
+  'built-ins/RegExp/prototype/flags/*': [FAIL],
 
   # https://code.google.com/p/v8/issues/detail?id=4347
   'built-ins/RegExp/prototype/global/name': [FAIL],
   'built-ins/RegExp/prototype/ignoreCase/name': [FAIL],
   'built-ins/RegExp/prototype/multiline/name': [FAIL],
   'built-ins/RegExp/prototype/source/name': [FAIL],
   'built-ins/RegExp/prototype/sticky/name': [FAIL],
 
   # https://code.google.com/p/v8/issues/detail?id=4360
   'intl402/Collator/10.1.1_1': [FAIL],
@@ skipping 254 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'
 ]