Fix test smell detection: Conditional Test Logic

[danielevalverde]

Definition: conditional Test Logic (CTL): Occurs when a test method
contains conditional expressions or loop structures

Detection: A test method that contains one or more control statements (i.e if, switch, conditional expression, for, foreach and while statement).

BUG: the test smell is not being identified if the conticional structure is "do while"

example:

@test
public void conditional_seven() {
int i = 0;
do {
System.out.println(i);
i++;
}
while (i < 2);
}

To reproduce: you can Run Jnose on this project and verify the output

https://github.com/danielevalverde/jnose-tests