Internal proposers

[supersaiyansubtlety]

based on: rebased

• Entry tooltips #307 because it messes with RecordGetterFindingVisitor
• Fix 91 #306 because it messes with EnigmaProject

Very early draft of internal proposers which will be used to make several fixes an improvements:

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