[supersaiyansubtlety]

based on #340 rebased

Internal proposers, used to make several fixes and improvements:

• Enums:
  • prevent renaming of enum constants (but still propose their names)
• Record components; default record component getters should automatically get their component's name #314
  • propose getter names matching the corresponding field already implemented
  • prevent directly naming definite getters
  • allow indirectly renaming the field corresponding to the getter via the getter instead
  • give the getter the same highlighting as the field

No synthetic field/local proposals for now

These require more context from vineflower to reliably match corresponding fields/locals.

• Anomymous class synthetic fields corresponding to outer method params; Issue with lost parameter connection #252
  • propose field names matching the corresponding param
  • allow indirectly renaming params corresponding to fields via the fields
  • give the field the same highlighting as the param

[supersaiyansubtlety]

This is ready

I removed the synthetic field/local stuff because it requires more info from vineflower.

Also note that for records, "give the getter the same highlighting as the field" is theoretically true, but since #340 makes getter indexing match decompilers and decompilers hide definite getters, you never actually see it in the gui.
You would see it when using the BYTECODE decompiler, except remapToNameable here is false for BYTECODE.