Made match optimizer handle future remappings.

[orizi]

Previously additional_remappings were not properly remapped due to the order of fix application.

[reviewable-StarkWare]

This change is 

[ilyalesokhin-starkware]

crates/cairo-lang-lowering/src/optimizations/match_optimizer.rs line 82 at r1 (raw file):

    // Fixes were added in reverse order, but we still need to add them at the reverse order, as if
    // we have `additional_remapping` non empty, we may need them to be renamed by later fixes.

Suggestion:

 // Fixes were added in reverse order and need to be applied in that order. 
 // This is because additional_remapping in later blocks may need to be renamed by fixes from earlier blocks.

[orizi]

Reviewable status: 0 of 3 files reviewed, 1 unresolved discussion (waiting on @ilyalesokhin-starkware)

---

crates/cairo-lang-lowering/src/optimizations/match_optimizer.rs line 82 at r1 (raw file):

    // Fixes were added in reverse order, but we still need to add them at the reverse order, as if
    // we have `additional_remapping` non empty, we may need them to be renamed by later fixes.

Done.

[ilyalesokhin-starkware]

Reviewed 2 of 3 files at r1, 1 of 1 files at r2.
Reviewable status: all files reviewed (commit messages unreviewed), all discussions resolved (waiting on @orizi)