LGTM.com - false positive - cs/equals-on-unrelated-types for types like Uri that override Equals

[ahsonkhan]

Description of the false positive

In general, the cs/equals-on-unrelated-types rule makes sense: https://lgtm.com/rules/1506096656531/

However, there are certain types, such as Uri which handle specific sets of types for equality in the Equals override method. In this particular case, Uri.Equals allows for the object to be string and tries to create a Uri from that string before comparing.
https://github.com/dotnet/runtime/blob/94ca567c76d4b2a8a5b2e744e3d9559abbcefdb0/src/libraries/System.Private.Uri/src/System/Uri.cs#L1629-L1657

URL to the alert on the project page on LGTM.com

https://lgtm.com/projects/g/dotnet/corefx/snapshot/4fed824926d1c659c494bd5261fbae0236b2e9da/files/src/System.Private.Uri/src/System/UriBuilder.cs?sort=name&dir=ASC&mode=heatmap#V364