BUG: UPLC that doesn't follow i_unique naming convention for variables sometimes convert to Program<DeBruijn> incorrectly

[MitchTurner]

The raw UPLC
https://github.com/input-output-hk/plutus/blob/ab3d01280109c1b5d1522f9bae475f5984fbc055/plutus-conformance/uplc/evaluation/example/fibonacci/fibonacci.uplc
doesn't parse correctly OR it doesn't get converted to DeBruijn correctly. The plan is to ignore the test for now and to add a TODO to the code with a link to this BUG.

Repro:
We've isolated this to a one_way_fibonacci test here:
#9

Expected Behavior:
The naming convention shouldn't affect the parser and it should look the same once converted to Program<DeBruijn> no matter the names.