deps: upgrade v8 to 3.25.30

deps/v8/.gitignore

@@ -22,6 +22,7 @@
 *~
 .cpplint-cache
 .d8_history
+.*.sw?
 bsuite
 d8
 d8_g
@@ -46,7 +47,7 @@ shell_g
 /test/mozilla/data
 /test/mozilla/downloaded_*
 /test/test262/data
-/test/test262/test262-*
+/test/test262/tc39-test262-*
 /third_party
 /tools/jsfunfuzz
 /tools/jsfunfuzz.zip

deps/v8/AUTHORS

@@ -17,8 +17,10 @@ Opera Software ASA
 Akinori MUSHA <knu@FreeBSD.org>
 Alexander Botero-Lowry <alexbl@FreeBSD.org>
 Alexander Karpinsky <homm86@gmail.com>
+Alexandre Rames <alexandre.rames@arm.com>
 Alexandre Vassalotti <avassalotti@gmail.com>
 Andreas Anyuru <andreas.anyuru@gmail.com>
+Baptiste Afsa <baptiste.afsa@arm.com>
 Bert Belder <bertbelder@gmail.com>
 Burcu Dogan <burcujdogan@gmail.com>
 Craig Schlenter <craig.schlenter@gmail.com>
@@ -31,6 +33,7 @@ Fedor Indutny <fedor@indutny.com>
 Filipe David Manana <fdmanana@gmail.com>
 Haitao Feng <haitao.feng@intel.com>
 Ioseb Dzmanashvili <ioseb.dzmanashvili@gmail.com>
+Jacob Bramley <jacob.bramley@arm.com>
 Jan de Mooij <jandemooij@gmail.com>
 Jay Freeman <saurik@saurik.com>
 James Pike <g00gle@chilon.net>
@@ -59,6 +62,7 @@ Sandro Santilli <strk@keybit.net>
 Sanjoy Das <sanjoy@playingwithpointers.com>
 Subrato K De <subratokde@codeaurora.org>
 Tobias Burnus <burnus@net-b.de>
+Vincent Belliard <vincent.belliard@arm.com>
 Vlad Burlik <vladbph@gmail.com>
 Xi Qian <xi.qian@intel.com>
 Yuqiang Xian <yuqiang.xian@intel.com>