Unspecified cyclic import behavior

To replicate this behavior, you have to manually create  `.i` interface files like so:
A.i
```lama
I,Std;
I,B;
```
B.i
```lama
I,Std;
I,A;
```
Source files:
A.lama
```lama
import B;

printf("A\n")
```
B.lama
```lama
import A;

printf("B\n")
```

Command
```bash
lamac -c B.lama -I . && lamac -c A.lama -I . &&  lamac A.lama -I . && ./A
```
Result
```
A
B
A
```