Method is_stack_ptr

include/daScript/simulate/heap.h:112–114

            return stack + stackSize;
        }
        __forceinline bool is_stack_ptr ( char * p ) const {
            return (stack<=p) && (p<=(stack + stackSize));
        }
        __forceinline uint32_t free_size() const {
            return uint32_t(stackTop - stack);
        }