Enabled const-folding cancelation for e2e tests.

[orizi]

Stack:

• Added const-folding *_eq with 0 into *_iz_zero. #6454
• Const propagation for ops with special operands. #6453
• Refactored setting constant and returning statement together. #6436
• Added *_eq const folding. #6435
• Enabled const-folding cancelation for e2e tests. #6434 ⬅

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

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This change is 

[gilbens-starkware]

Reviewed 2 of 6 files at r1, all commit messages.
Reviewable status: 2 of 6 files reviewed, 1 unresolved discussion (waiting on @orizi)

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tests/e2e_test.rs line 28 at r1 (raw file):

    let mut db = RootDatabase::builder().detect_corelib().build().unwrap();
    db.set_optimization_config(Arc::new(
        OptimizationConfig::default().with_skip_const_folding(true),

Shouldn't it be in addition to with_miniman_moveable_functions?

Code quote:

OptimizationConfig::default().with_skip_const_folding(true),

[orizi]

Reviewable status: 2 of 6 files reviewed, 1 unresolved discussion (waiting on @gilbens-starkware)

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tests/e2e_test.rs line 28 at r1 (raw file):

Previously, gilbens-starkware (Gil Ben-Shachar) wrote…

Shouldn't it be in addition to with_miniman_moveable_functions?

no - the only reason that was needed is because of the const folding.

[gilbens-starkware]

Reviewed 4 of 6 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @orizi)