Code Cleanup in lowering matching code

[eytan-starkware]

Removed unneeded clone calls on patterns.

---

Stack:

• Common reporting code in lower_match #7727
• Represent match arm wrapper as an enum with explicit cases #7726
• Code Cleanup in lowering matching code #7715 ⬅
• Match on enum arm collection using tree structure #7713

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

[reviewable-StarkWare]

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[orizi]

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[TomerStarkware]

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[orizi]

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[orizi]

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[orizi]

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[orizi]

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[orizi]

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[TomerStarkware]

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