Misc. function fixes

[Jacky720]

Description

Fix decompilation and recompilation of anonymous functions and object functions, as well as renaming functions (previously caused a decompiler crash due to two gml_Script entries with the same offset). Closes #1428. Closes #565.

Caveats

This is highly untested at the moment, but in this particular field I don't think it's possible for anything to regress unless the whole tool crashes.

Notes

N/A

[github-actions[bot]]

Download the artifacts for this pull request here:

GUI:

• GUI-windows-latest-isBundled-false-isSingleFile-false
• GUI-windows-latest-isBundled-false-isSingleFile-true

CLI:

• CLI-macOS-latest-isBundled-false
• CLI-ubuntu-latest-isBundled-false
• CLI-windows-latest-isBundled-false

[Miepee]

Is this going to be obsoleted by @colinator27's new decompiler?

[Jacky720]

I'm a bit late to this commentary, but I don't believe so. Most of the changes included here are compiler-side. It'll definitely require adjustment, though, and I'm happy to wait and fix it up after the new decompiler is in, as well as checking how function renaming works under Underanalyzer.