1. Create a variable x = 123
2. Create a for loop for x in [1,2,3]
3. Insert print(x + 5) inside the body of the loop.
4. Remove the identifier x in the for loop.
5. Navigate off the loop statement and observe that the reference to x inside the print is marked with a warning even though it should not be because x is still declared outside of the loop in its parent scope.
6. Navigate to the declaration of x outside of the for loop (above).
7. Navigate off of it and observe that the warning is removed and so is the variable button for x even though it is still defined.

Related: #565, #570