fix(vm/remaining: convert panics to EngineError::Panic using js_expect

[KaustubhOG]

Part of #3241.

Converts all convertible .expect() panics to .js_expect()? in:

• opcode/get/property.rs (2)
• opcode/get/name.rs (2)
• opcode/get/private.rs (1)
• opcode/binary_ops/mod.rs (1)
• opcode/copy/mod.rs (2)
• opcode/set/private.rs (2)
• opcode/call/mod.rs (6)
• opcode/iteration/iterator.rs (4)

Total: 20 panics converted.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	52,963	52,963	0
Passed	50,732	50,732	0
Ignored	1,426	1,426	0
Failed	805	805	0
Panics	0	0	0
Conformance	95.79%	95.79%	0.00%

Tested main commit: 2437b6704c4315f6ec8f0766bf229fba23e0e61e
Tested PR commit: c5045fecaaa1641f60dd33f1b23703a2cbaccbe4
Compare commits: 2437b67...c5045fe

[KaustubhOG]

Note: this PR along with #5228 and #5232 covers the majority of convertible panics in vm/.the orginal idea was A #5228 and #5232 will cover all the panics in vm/ but in #5232 i made some new changes so after that #5267 cames in picture with handling all remaining panics . (get/, binary_ops/, copy/, set/private.rs, call/mod.rs, iteration/iterator.rs) . Once all three are merged, all convertible panics in vm/ will be fully resolved.

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.79%. Comparing base (6ddc2b4) to head (c5045fe).
⚠️ Report is 919 commits behind head on main.

Files with missing lines	Patch %	Lines
core/engine/src/vm/opcode/get/name.rs	0.00%	5 Missing ⚠️
core/engine/src/vm/opcode/copy/mod.rs	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5267       +/-   ##
===========================================
+ Coverage   47.24%   59.79%   +12.55%     
===========================================
  Files         476      589      +113     
  Lines       46892    63407    +16515     
===========================================
+ Hits        22154    37915    +15761     
- Misses      24738    25492      +754     

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