chore: use BlockHashAndNumber from SN_API in blockifier

[dan-starkware]

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[dan-starkware]

• chore: use BlockHashAndNumber from SN_API in blockifier #1616 👈
• main

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Codecov Report

Attention: Patch coverage is 60.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 76.95%. Comparing base (e3165c4) to head (e5e2d26).
Report is 77 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/native_blockifier/src/py_utils.rs	20.00%	2 Missing and 2 partials ⚠️
crates/blockifier/src/blockifier/block.rs	75.00%	0 Missing and 1 partial ⚠️
crates/papyrus_execution/src/lib.rs	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1616       +/-   ##
===========================================
+ Coverage   40.10%   76.95%   +36.84%     
===========================================
  Files          26      360      +334     
  Lines        1895    38359    +36464     
  Branches     1895    38359    +36464     
===========================================
+ Hits          760    29519    +28759     
- Misses       1100     6607     +5507     
- Partials       35     2233     +2198     

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Reviewed 12 of 14 files at r1, 4 of 4 files at r2, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @dan-starkware)

---

crates/blockifier/src/test_utils.rs line 465 at r2 (raw file):

}

pub fn maybe_dummy_block_hash_and_number(block_number: BlockNumber) -> Option<BlockHashAndNumber> {

Why maybe?
We usually add such methods in the struct_impl file. Do you think that adding it here is better?

Code quote:

pub fn maybe_dummy_block_hash_and_number(block_number: BlockNumber) -> Option<BlockHashAndNumber> {