Misusage of Opponent.toName

[Rathoz]

There are cases where Opponent.toName cannot be used to uniquely determine an opponent (mostly one-off subteams in a tournament).

Usages of toName:

Bad usage (Will display wrong data):

• CharacterStats (lookup by toName)
• PrizePool/Import (groupLastVsAdditionalData keyed by toName)
• TeamParticipants/Repository (potentialQualifiers serialized with toName)

Questionable usage (highlighting)

• ParticipantTable (when used for teams, will deduplicate/error on toName)
• MatchGroup/Display/Helper (hover key)

Ignored usage (sorting)

• MatchTable (sort key)
• MatchesScheduleDisplay (sort key)
• StageWinningsCalculation

Okay usage

• Opponent (for player teams)

Originally posted by @mbergen in #7448 (comment)