[Core] AsReadOnly<T> conflicts with System.Collections.Generic.CollectionExtensions

[MartinZikmund]

What would you like to be added:

Note this extension does not come from Uno Extensions, but from Uno.Core package

When Uno Extensions are included in an app, the Uno.Core AsReadOnly extension will conflict with the .NET built-in one, as Uno Extensions adds global using for Uno.Extensions namespace, so both are included by default when the user uses Uno Extensions, so AsReadOnly is essentially unusable as an extension method.

I think it may be just better to keep this one internal only or remove it altogether.

Why is this needed:

Usability

For which Platform:

All

[jeromelaban]

Uno.Core does not provide this particular extension, it is a sub-package that provides it. If need be, the dependency should be decomposed to avoid using that particular sub-package that provides this extension.

[nickrandolph]

@MartinZikmund / @jeromelaban has anything been done about this?

[MartinZikmund]

@nickrandolph not yet, not sure if this would be a breaking change that we can safely do?

[jeromelaban]

No change has been done for this. The only way to change this is to ensure that uno.extensions does not rely on uno.core, but only the required sub packages.