Setup bytecode manipulations to adjust copied specialized Scala 2 classes

[WojciechMazur]

Tries to fix #24994 by manipulating bytecode when coping from Scala 2 stdlib-library.jar

Replaces #24996 and builds upon it checks. Initially 90 conflcits were found (se report [missingLink.report.md](https://github.com/user-attachments/files/24674742/missingLink.report.md or this CI job)

We explicitlly list every manipulation so it's easier to track, as I'm writing these words there are 3 remaining conflicts to related to synthesised members

Details

[error] Category: FIELD NOT FOUND
[error]   In artifact: classes
[error]     In class: scala.collection.Iterator$$anon$3$$anon$4
[error]       In method:  next():406
[error]       Access to: scala.collection.Iterator$$anon$3.z$1
[error]       Problem: Field not found: z$1
[error]       Found in: classes
[error]       --------
[error]     In class: scala.collection.Iterator$$anon$3$$anon$4$$anon$5
[error]       In method:  <init>(scala.collection.Iterator$$anon$3$$anon$4):398
[error]       Access to: scala.collection.Iterator$$anon$3.z$1
[error]       Problem: Field not found: z$1
[error]       Found in: classes
[error]       --------
[error]       In method:  next():400
[error]       Access to: scala.collection.Iterator$$anon$3.op$1
[error]       Problem: Field not found: op$1
[error]       Found in: classes
[error]       --------
[error] There were 3 conflicts

[WojciechMazur]

Initial idea seems to be quickly broken by IllegallAccessExceptions, so most likely another solution should be tried