[test] Re-enable all Unicode property tests

The DEPS roll in f3a2e34d updated ICU to a version that includes
a fix for https://ssl.icu-project.org/trac/ticket/13462. As a
result, our Script_Extension data is now correct again.

This patch re-enables the Test262 tests that were failing due to this
ICU data bug.

BUG=v8:4743

Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: If0f08693ed0355c59b9c02aa6d941dab1588431c
Reviewed-on: https://chromium-review.googlesource.com/761616Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49284}

test/test262/test262.status

@@ -438,17 +438,6 @@
   'built-ins/Object/internals/DefineOwnProperty/consistent-value-function-caller': [FAIL_SLOPPY],
   'built-ins/Object/internals/DefineOwnProperty/consistent-value-function-arguments': [FAIL_SLOPPY],
 
-  # ICU 60.1 has trouble with U+3000 and U+3012 for certain Script_Extensions
-  # https://bugs.chromium.org/p/v8/issues/detail?id=4743#c54
-  # https://ssl.icu-project.org/trac/ticket/13466
-  'built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Bopomofo': [SKIP],
-  'built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Common': [SKIP],
-  'built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Han': [SKIP],
-  'built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Hangul': [SKIP],
-  'built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Hiragana': [SKIP],
-  'built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Katakana': [SKIP],
-  'built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Yi': [SKIP],
-
   # https://bugs.chromium.org/p/v8/issues/detail?id=6776
   'built-ins/Proxy/ownKeys/return-duplicate-entries-throws': [FAIL],
   'built-ins/Proxy/ownKeys/return-duplicate-symbol-entries-throws': [FAIL],