deps: cherry-pick a51f429 from V8 upstream

Original commit message: [regexp] Fix case-insensitive matching for one-byte subjects. The bug occurs because we do not canonicalize character class ranges before adding case equivalents. While adding case equivalents, we abort early for one-byte subject strings, assuming that the ranges are sorted. Which they are not. [email protected] BUG=v8:5199 Review-Url: https://codereview.chromium.org/2159683002 Cr-Commit-Position: refs/heads/master@{#37833} Fixes: #7708 PR-URL: #7833 Reviewed-By: targos - Michaël Zasso <[email protected]> Reviewed-By: bnoordhuis - Ben Noordhuis <[email protected]> Reviewed-By: ofrobots - Ali Ijaz Sheikh <[email protected]>

Author: fhinkel

deps/v8/include/v8-version.h

@@ -11,7 +11,7 @@
 #defineV8_MAJOR_VERSION 5
 #defineV8_MINOR_VERSION 1
 #defineV8_BUILD_NUMBER 281
-#defineV8_PATCH_LEVEL77
+#defineV8_PATCH_LEVEL78
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8/src/regexp/jsregexp.cc

@@ -5879,6 +5879,7 @@ Vector<const int> CharacterRange::GetWordBounds(){
 voidCharacterRange::AddCaseEquivalents(Isolate* isolate, Zone* zone,
  ZoneList<CharacterRange>* ranges,
 bool is_one_byte){
+CharacterRange::Canonicalize(ranges);
 int range_count = ranges->length();
 for (int i = 0; i < range_count; i++){
  CharacterRange range = ranges->at(i);

deps/v8/test/mjsunit/regress/regress-5199.js

@@ -0,0 +1,5 @@
+// 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.
+
+assertTrue(/(a[\u1000A])+/i.test('aa'));