Error when constant is used to specify variable size

Did you know that you can use constants to specify the size of a char typed variable? The following code generates an error in Abap Cleaner:

```abap
report ztest.

constants c_size type i value 10.

data lv_text(c_size) type c.

lv_text = '1234567890'.
```

This is the error:

![image](https://github.com/user-attachments/assets/ca5e5dc7-e661-4f6d-a106-957dfe91ff2e)
