Please add [CanBeNull] attribute to some methods

For example this method:

    [Pure]
    public static TValue GetValueOrDefault<TKey, TValue>([NotNull] this Dictionary<TKey, TValue> dictionary, TKey key)
    {
      return DictionaryExtensions.GetValueOrDefault<TKey, TValue>(dictionary, key, default (TValue));
    }

should have [CanBeNull] attribute applied, because it can return null when TValue is a class. Otherwise ReSharper does not help catch possible null reference exception.

[ig-sinicyn]

@MozgC I’ve marked only overloads that have no selector or explicit default value arg. If this is not what you want - let me know:)

[ig-sinicyn]

@Lexey, OP is talking about marking the return value with [CanBeNull]. it looks reasonable for me.

@MozgC, will do. BTW doing a PR would work too:)