fix: TypeEncoding might be initialized with random data (#144)

Author: edusperoni

NativeScript/runtime/ClassBuilder.mm

@@ -547,7 +547,7 @@
             std::string methodNameStr = tns::ToString(isolate, methodName);
             SEL selector = sel_registerName(methodNameStr.c_str());
 
-            TypeEncoding* typeEncoding = reinterpret_cast<TypeEncoding*>(malloc((argsCount + 1) * sizeof(TypeEncoding)));
+            TypeEncoding* typeEncoding = reinterpret_cast<TypeEncoding*>(calloc((argsCount + 1), sizeof(TypeEncoding)));
             typeEncoding->type = returnType;
 
             if (!paramsVal.IsEmpty() && paramsVal->IsArray()) {

NativeScript/runtime/InteropTypes.mm

@@ -309,7 +309,7 @@
 }
 
 const TypeEncoding* Interop::CreateEncoding(BinaryTypeEncodingType type) {
-    TypeEncoding* typeEncoding = reinterpret_cast<TypeEncoding*>(malloc(sizeof(TypeEncoding)));
+    TypeEncoding* typeEncoding = reinterpret_cast<TypeEncoding*>(calloc(1, sizeof(TypeEncoding)));
     typeEncoding->type = type;
 
     return typeEncoding;