deps: patch V8 to 6.4.388.46

PR-URL: #18827 Refs: v8/v8@6.4.388.45...6.4.388.46 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com>
nodejs · Feb 17, 2018 · 8123232 · 8123232
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commit 8123232
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diff --git a/deps/v8/include/v8-version.h b/deps/v8/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 6
 #define V8_MINOR_VERSION 4
 #define V8_BUILD_NUMBER 388
-#define V8_PATCH_LEVEL 45
+#define V8_PATCH_LEVEL 46
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

diff --git a/deps/v8/src/heap/spaces.cc b/deps/v8/src/heap/spaces.cc
@@ -351,8 +351,8 @@ void MemoryAllocator::Unmapper::WaitUntilCompleted() {
         CancelableTaskManager::kTaskAborted) {
       pending_unmapping_tasks_semaphore_.Wait();
     }
-    concurrent_unmapping_tasks_active_ = 0;
   }
+  concurrent_unmapping_tasks_active_ = 0;
 }
 
 template <MemoryAllocator::Unmapper::FreeMode mode>