feat(compiler): Generate optimized code for ToInt32 code patterns

[HalidOdat]

This pull request introduces a new bytecode instruction, ToInt32, to the engine's virtual machine. The main purpose of this change is to optimize certain bitwise operations by emitting a specialized instruction for converting values to 32-bit integers, particularly for common JavaScript idioms like x | 0 and x & 0xFFFFFFFF.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	53,125	53,125	0
Passed	51,049	51,049	0
Ignored	1,482	1,482	0
Failed	594	594	0
Panics	0	0	0
Conformance	96.09%	96.09%	0.00%

Tested main commit: 3f8a99641ea51f02dc0ede7fcb75468eb6531bfe
Tested PR commit: 62747cb3a6542cb4af0be05dd5a79acc564e6cd0
Compare commits: 3f8a996...62747cb

[codecov]

Codecov Report

❌ Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 59.72%. Comparing base (6ddc2b4) to head (62747cb).
⚠️ Report is 1006 commits behind head on main.

Files with missing lines	Patch %	Lines
core/engine/src/vm/code_block.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5307       +/-   ##
===========================================
+ Coverage   47.24%   59.72%   +12.48%     
===========================================
  Files         476      589      +113     
  Lines       46892    63663    +16771     
===========================================
+ Hits        22154    38023    +15869     
- Misses      24738    25640      +902     

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[jedel1043]

Cool optimization!

[jedel1043]

(needs a rebase, but approving nonetheless)