[regexp] extend property classes by unicode blocks.

test/mjsunit/harmony/regexp-property-blocks.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-regexp-property --harmony-unicode-regexps
+
+function t(re, s) { assertTrue(re.test(s)); }
+function f(re, s) { assertFalse(re.test(s)); }
+
+t(/\p{ASCII}+/u, ".");
+t(/\p{ASCII}+/u, "supercalifragilisticexpialidocious");
+t(/\p{BasicLatin}+/u, ".");
+t(/\p{BasicLatin}+/u, "supercalifragilisticexpialidocious");
+t(/\p{InBasic_Latin}+/u, ".");
+t(/\p{InBasic_Latin}+/u, "supercalifragilisticexpialidocious");
+t(/\p{InBasicLatin}+/u, ".");
+t(/\p{InBasicLatin}+/u, "supercalifragilisticexpialidocious");
+
+t(/\p{CJK}+/u, "话说天下大势，分久必合，合久必分");
+t(/\p{InCJK}+/u, "吾庄后有一桃园，花开正盛");
+f(/\p{CJKUnifiedIdeographs}+/u, "おはようございます");
+f(/\p{In CJK unified ideographs}+/u,
+  "Something is rotten in the state of Denmark");
+
+t(/\p{Latin_1}+/u, "Wie froh bin ich, daß ich weg bin!");
+f(/\p{ASCII}+/u, "奔腾千里荡尘埃，渡水登山紫雾开");
+f(/\p{Latin_1}+/u, "いただきます");
+
+t(/\p{InHiragana}/u, "いただきます");
+t(/\p{Hiragana}/u, "\u{1b001}");    // This refers to the script "Hiragana".
+t(/\p{IsHiragana}/u, "\u{1b001}");  // This refers to the script "Hiragana".
+f(/\p{InHiragana}/u, "\u{1b001}");  // This refers to the block "Hiragana".
+
+t(/\p{GreekAndCoptic}/u, "ἄνδρα μοι ἔννεπε, μοῦσα, πολύτροπον, ὃς μάλα πολλὰ");
+t(/\p{InGreek}/u, "μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος");
+
+assertThrows("/\\p{In}/u");