fixed the panic new Function(...) issue

[hriztam]

This Pull Request fixes/closes #4525

It changes the following:

• Adds root-aware scope index optimization support for function-like nodes, with a root-only force option.
• Adds FunctionExpression::analyze_scope_with_options(..., force_function_scope: bool) and keeps analyze_scope as a backward-compatible default.
• Updates dynamic Function constructor analysis to force root function-scope indexing so runtime env layout matches binding locators.
• Adds regression tests for new Function(...) panic reproduction and nested lexical capture behavior.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	52,862	52,862	0
Passed	49,472	49,472	0
Ignored	2,249	2,249	0
Failed	1,141	1,141	0
Panics	0	0	0
Conformance	93.59%	93.59%	0.00%

[jedel1043]

Already fixed by #4645.