deps: update V8 to 6.7.8

Author: nodejs-ci

deps/v8/.gitignore

@@ -36,8 +36,6 @@
 /_*
 /build
 /buildtools
-/gypfiles/.gold_plugin
-/gypfiles/win_toolchain.json
 /hydrogen.cfg
 /obj
 /out
@@ -50,9 +48,6 @@
 /test/fuzzer/wasm_corpus
 /test/fuzzer/wasm_corpus.tar.gz
 /test/mozilla/data
-/test/promises-aplus/promises-tests
-/test/promises-aplus/promises-tests.tar.gz
-/test/promises-aplus/sinon
 /test/test262/data
 /test/test262/data.tar
 /test/test262/harness
@@ -79,6 +74,8 @@
 /tools/jsfunfuzz/jsfunfuzz
 /tools/jsfunfuzz/jsfunfuzz.tar.gz
 /tools/luci-go
+/tools/mips_toolchain
+/tools/mips_toolchain.tar.gz
 /tools/oom_dump/oom_dump
 /tools/oom_dump/oom_dump.o
 /tools/swarming_client
@@ -94,6 +91,7 @@ TAGS
 bsuite
 compile_commands.json
 d8
+!/test/mjsunit/d8
 d8_g
 gccauses
 gcsuspects

deps/v8/AUTHORS

@@ -96,6 +96,7 @@ Luis Reis <[email protected]>
 Luke Zarko <[email protected]>
 Maciej Małecki <[email protected]>
 Marcin Cieślak <[email protected]>
+Marcin Wiącek <[email protected]>
 Mateusz Czeladka <[email protected]>
 Mathias Bynens <[email protected]>
 Matt Hanselman <[email protected]>
@@ -106,6 +107,7 @@ Michael Smith <[email protected]>
 Michaël Zasso <[email protected]>
 Mike Gilbert <[email protected]>
 Mike Pennisi <[email protected]>
+Mikhail Gusarov <[email protected]>
 Milton Chiang <[email protected]>
 Myeong-bo Shim <[email protected]>
 Nicolas Antonius Ernst Leopold Maria Kaiser <[email protected]>
@@ -118,6 +120,7 @@ Peter Rybin <[email protected]>
 Peter Varga <[email protected]>
 Peter Wong <[email protected]>
 Paul Lind <[email protected]>
+Qingyan Li <[email protected]>
 Qiuyi Zhang <[email protected]>
 Rafal Krypa <[email protected]>
 Refael Ackermann <[email protected]>
@@ -133,6 +136,8 @@ Sanjoy Das <[email protected]>
 Seo Sanghyeon <[email protected]>
 Stefan Penner <[email protected]>
 Sylvestre Ledru <[email protected]>
+Taketoshi Aono <[email protected]>
+Tiancheng "Timothy" Gu <[email protected]>
 Tobias Burnus <[email protected]>
 Victor Costan <[email protected]>
 Vlad Burlik <[email protected]>