Follow up items for Options validation source generator

[tarekgh]

This issue is tracking the follow up tasks we need to do options source gen.

• Source gen optimizations listed in the comments
  • Options validation source generator #87587 (review)
  • Options validation source generator #87587 (review)
  • Options validation source generator #87587 (review)
• Support new Options attributes in the Runtime #90275
  • ValidateObjectMembersAttribute
  • ValidateEnumeratedItemsAttribute

#85475

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Issue Details

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This issue is tracking the follow up tasks we need to do options source gen.

• Source gen optimizations listed in the comments
  • Options validation source generator #87587 (review)
  • Options validation source generator #87587 (review)
  • Options validation source generator #87587 (review)
• Support the newly introduce validation attributes in the runtime
  • ValidateObjectMembersAttribute
  • ValidateEnumeratedItemsAttribute

#85475

Author:	tarekgh
Assignees:	-
Labels:	untriaged, area-Extensions-Options
Milestone:	-

[xakep139]

@tarekgh I created two issues: #88152 and #88150, not sure that these should be considered as follow-up items for this one