fix: remove static lifetime for name str parameter requirement for constant getter

[Eikix]

remove static lifetime for name str parameter requirement for constant getter

Description

Hey!
I noticed get_constant_from_var_name has a different signature from other hint_utils helper functions, namely that it has a bound of static lifetime on the name parameter. I noticed it mainly comes from the error signature HintError::MissingConstant.

I changed the signature of MissingConstant to match other errors: from Box<'static &str> to Box using the same util you use around the hint error codebase: var_name.to_string().into_boxed_str().

In doing this, one no longer needs to have 'static strings for constant getting -> this will allow me in next PRs to have dynamic constant name getting, i.e., in garaga there are constant limbs of Prime P of the BN Curve.
And depending on N_LIMBS, we'll get P_i.

Let me know if this works!

Resolves: #1522

Description of the pull request changes and motivation.

Checklist

• Linked to Github Issue
• Unit tests added
• Integration tests added.
• This change requires new documentation.
  • Documentation has been added/updated.
  • CHANGELOG has been updated.

[fmoletta]

Looks good 🚀 Please update the CHANGELOG file

[codecov]

Codecov Report

Attention: Patch coverage is 79.31034% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 97.11%. Comparing base (f47f760) to head (6b22b68).

❗ Current head 6b22b68 differs from pull request most recent head 97bb7df. Consider uploading reports for the commit 97bb7df to get more accurate results

Files	Patch %	Lines
...uiltin_hint_processor/cairo_keccak/keccak_hints.rs	71.42%	4 Missing ⚠️
...int_processor/builtin_hint_processor/math_utils.rs	77.77%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1523      +/-   ##
==========================================
+ Coverage   94.76%   97.11%   +2.34%     
==========================================
  Files         101       91      -10     
  Lines       38826    37248    -1578     
==========================================
- Hits        36795    36172     -623     
+ Misses       2031     1076     -955     

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[Oppen]

Applying this patch should fix the linter:

diff --git a/vm/src/hint_processor/builtin_hint_processor/math_utils.rs b/vm/src/hint_processor/builtin_hint_processor/math_utils.rs
index 68cb30fc1..bbe18b5d7 100644
--- a/vm/src/hint_processor/builtin_hint_processor/math_utils.rs
+++ b/vm/src/hint_processor/builtin_hint_processor/math_utils.rs
@@ -2085,7 +2085,7 @@ mod tests {
         //Execute the hint
         assert_matches!(
             run_hint!(vm, ids_data, hint_code),
-            Err(HintError::MissingConstant(bx)) if *bx == ADDR_BOUND.to_string()
+            Err(HintError::MissingConstant(bx)) if &*bx == ADDR_BOUND
         );
     }
 
@@ -2309,7 +2309,7 @@ mod tests {
         //Execute the hint
         assert_matches!(
             run_hint!(vm, ids_data, hint_code),
-            Err(HintError::MissingConstant(x)) if (*x) == "MAX_HIGH".to_string()
+            Err(HintError::MissingConstant(x)) if &*x == "MAX_HIGH"
         );
     }
 
diff --git a/vm/src/hint_processor/builtin_hint_processor/uint384.rs b/vm/src/hint_processor/builtin_hint_processor/uint384.rs
index 4e2bb4412..9f6646dd3 100644
--- a/vm/src/hint_processor/builtin_hint_processor/uint384.rs
+++ b/vm/src/hint_processor/builtin_hint_processor/uint384.rs
@@ -535,7 +535,7 @@ mod tests {
         //Execute the hint
         assert_matches!(
             run_hint!(vm, ids_data, hint_code::ADD_NO_UINT384_CHECK),
-            Err(HintError::MissingConstant(bx)) if *bx == "SHIFT".to_string()
+            Err(HintError::MissingConstant(bx)) if &*bx == "SHIFT"
         );
     }