Revert "Revert "Upgrade v8 to 6.9.427.20""

This reverts commit 6cac32e.

Author: darind

build-artifacts/project-template-gradle/settings.json

@@ -1,3 +1,3 @@
 {
-    "v8Version": "6.9.427.19"
+    "v8Version": "6.9.427.20"
 }

test-app/app/src/main/assets/app/modules/libCalc-arm.so

@@ -482,8 +482,8 @@ void ObjectManager::MarkReachableObjects(Isolate* isolate, const Local<Object>&
         }
 
         auto o = top.As<Object>();
-        if(!isInFirstRun) {
-            uint8_t* addr = NativeScriptExtension::GetAddress(o);
+        if (!isInFirstRun) {
+            unsigned long addr = NativeScriptExtension::GetAddress(o);
             auto itFound = m_visited.find(addr);
             if (itFound != m_visited.end()) {
                 continue;

test-app/app/src/main/assets/app/modules/libCalc-arm64.so

@@ -201,7 +201,7 @@ class ObjectManager {
 
         PersistentObjectIdSet m_released;
 
-        std::set<uint8_t*> m_visited;
+        std::set<unsigned long> m_visited;
 
         LRUCache<int, jweak> m_cache;