Rework evaluation to use shared pointers, fix bugs

src/Evaluator/EvalValues/ScriptFunctionEvalValue.hpp

@@ -25,10 +25,11 @@ public:
         return _type;
     }
 
-    EvalValue* Clone() final{
-        return new ScriptFunctionEvalValue(_innerBlock, _type);
+    shared_ptr<EvalValue> Clone() final{
+        return make_shared<ScriptFunctionEvalValue>(_innerBlock, _type);
     }
 
+
     bool operator ==(EvalValue* b) final{
         if (b->GetType()->GetClass() != TypeClass::Function)
             return false;