deps: patch V8 to 6.5.254.40

PR-URL: #19380
Refs: v8/v8@6.5.254.38...6.5.254.40
Reviewed-By: Michaël Zasso <targos@protonmail.com>

Author: MylesBorins

deps/v8/include/v8-version.h

@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 6
 #define V8_MINOR_VERSION 5
 #define V8_BUILD_NUMBER 254
-#define V8_PATCH_LEVEL 38
+#define V8_PATCH_LEVEL 40
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8/src/wasm/wasm-code-manager.cc

@@ -954,6 +954,8 @@ void WasmCodeManager::FreeNativeModuleMemories(NativeModule* native_module) {
     Free(&vmem);
     DCHECK(!vmem.IsReserved());
   }
+  native_module->owned_memory_.clear();
+
   // No need to tell the GC anything if we're destroying the heap,
   // which we currently indicate by having the isolate_ as null
   if (isolate_ == nullptr) return;

deps/v8/tools/whitespace.txt

@@ -8,5 +8,3 @@ The doubles heard this and started to unbox.
 The Smi looked at them when a crazy v8-autoroll account showed up...
 The autoroller bought a round of Himbeerbrause. Suddenly...
 The bartender starts to shake the bottles.......................
-.
-.