Using all upcasts and downcasts variants.

[orizi]

Stack:

• Added const-folding of unbox. #7683
• Minor refactoring for const-folding. #7682
• Major refactoring of ByteArray vastly reducing its size. #7669
• Using all upcasts and downcasts variants. #7668 ⬅

⚠️ 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 

[gilbens-starkware]

Reviewed 3 of 4 files at r1, all commit messages.
Reviewable status: 3 of 4 files reviewed, 1 unresolved discussion

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crates/cairo-lang-runner/src/profiling_test_data/major_test_cases line 1143 at r1 (raw file):

  function core::Felt252PartialEq::eq: 3
  function core::starknet::testing::set_caller_address: 3
  function unknown: 2

Any idea why it is unknown?

Code quote:

 function unknown: 2

[orizi]

Reviewable status: 3 of 4 files reviewed, 1 unresolved discussion (waiting on @gilbens-starkware)

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crates/cairo-lang-runner/src/profiling_test_data/major_test_cases line 1143 at r1 (raw file):

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

Any idea why it is unknown?

const-statement does not contain a location by itself, it has location by previous statements, and this one was probably first.

[gilbens-starkware]

Reviewed 1 of 4 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @orizi)