[Proposal]: Nullable analysis of LINQ queries

[333fred]

Nullable analysis of LINQ queries

• Specification: None yet
• Discussion: [Proposal]: Nullable analysis of LINQ queries #8998

Summary

Nullable analysis of LINQ queries (LDM expressed interested to handle Where, needs design proposal)

Design meetings

Split issue from #3868
https://github.com/dotnet/csharplang/blob/main/meetings/2022/LDM-2022-09-28.md#nullability-improvements
https://github.com/dotnet/csharplang/blob/main/meetings/2024/LDM-2024-09-06.md#nullable-analysis-of-linq-queries