Remove RequiresUnreferencedCode from DefaultValueAttribute

[LakshanF]

This constructor of DefaultValue has RUC on it. This is likely due to a concern round converters with generic types (Nullable) which has been since fixed in the trimmer.

[ghost]

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Issue Details

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This constructor of DefaultValue has RUC on it. This is likely due to a concern round converters with generic types (Nullable) which has been since fixed in the trimmer.

Author:	LakshanF
Assignees:	-
Labels:	area-System.ComponentModel
Milestone:	-

[steveharter]

@LakshanF I assume you are proposing removing the RUC. Can you create a PR to do that? Thanks

[ghost]

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Issue Details

---

This constructor of DefaultValue has RUC on it. This is likely due to a concern round converters with generic types (Nullable) which has been since fixed in the trimmer.

Author:	LakshanF
Assignees:	-
Labels:	area-System.ComponentModel, linkable-framework
Milestone:	9.0.0

[vitek-karas]

The Nullable problem is actually only one of the reasons for RUC. Once you fix that, you'll notice that there's a secondary problem where the NullableConverter is calling TypeDescriptor.GetConverter for the underlying type:

runtime/src/libraries/System.ComponentModel.TypeConverter/src/System/ComponentModel/NullableConverter.cs

Line 34 in a78ddcc

UnderlyingTypeConverter = TypeDescriptor.GetConverter(UnderlyingType);

That method has RUC, and so we need to propagate it. I think this would only be fixable once we remove RUC on GetConverter.