Handling IL-level .override corner cases

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
csharp
Domain
backend

Research direction

Start with the TODO in src/coreclr/tools/Common/TypeSystem/Common/MetadataVirtualMethodAlgorithm.cs around line 468 and inspect the tests described as blocked by this issue. Determine which IL-level .override corner cases the managed type system mishandles, then verify that the affected tests are no longer blocked.

Written by the indexing model from the issue text.

Description

area-NativeAOT-coreclr

The managed type system doesn't seem to handle various corner case behaviors around .override in IL. See tests blocked on this issue.

Putting this under native AOT, but it's in the shared managed type system.

Possibly related to the following TODO:

https://github.com/dotnet/runtime/blob/7693b6d0202281dc38dcfb9562e9064fcd13bc61/src/coreclr/tools/Common/TypeSystem/Common/MetadataVirtualMethodAlgorithm.cs#L468-L470

Dominant language
C#
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