Removed the concrete trait from generated closure function key.

[orizi]

Fixed #7095

[reviewable-StarkWare]

This change is 

[TomerStarkware]

Reviewed 7 of 7 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @orizi)

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crates/cairo-lang-lowering/src/lower/generated_test.rs line 40 at r1 (raw file):

    )
    .split();
    println!("test_function:\n{}", semantic_diagnostics);

is this suppose to be here?

[orizi]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @TomerStarkware)

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crates/cairo-lang-lowering/src/lower/generated_test.rs line 40 at r1 (raw file):

Previously, TomerStarkware wrote…

is this suppose to be here?

Done.

[TomerStarkware]

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