[Bug] kecc framework bug for variable redefinition?

[hqqkun]

In Homework 2, when I tested the KECC framework with the following code snippet that involves global variable redefinition:

int nonce = 1;
int nonce = 100;

The output was var i32 @nonce = 100, indicating that the code at this line in the KECC framework does not handle variable redefinition properly. This suggests that the framework does not address this issue. Is this a bug, or is it intentional to encourage students to modify the code?