Moved VariantMatchTree construction into the EnumVariantScopeBuilder

[eytan-starkware]

Stack:

• Recursive lowering and sealing of enum match patterns and arms #7764
• Moved VariantMatchTree construction into the EnumVariantScopeBuilder #7763 ⬅

⚠️ Part of a stack created by spr. Do not merge manually using the UI - doing so may have unexpected results.

[reviewable-StarkWare]

This change is 

[orizi]

Reviewed all commit messages.
Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion

---

crates/cairo-lang-lowering/src/lower/lower_match.rs line 1056 at r1 (raw file):

        // If we draw it as a tree we can see different branches have different types and depths:
        // ``` Either
        // ├── Either

Suggestion:

        // If we draw it as a tree we can see different branches have different types and depths:
        // ``` 
        // Either
        // ├── Either

[orizi]

Reviewed 1 of 1 files at r1.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @eytan-starkware)

[eytan-starkware]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion (waiting on @orizi)

---

crates/cairo-lang-lowering/src/lower/lower_match.rs line 1056 at r1 (raw file):

        // If we draw it as a tree we can see different branches have different types and depths:
        // ``` Either
        // ├── Either

Done.

[orizi]

Reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @eytan-starkware)