Add uniqBy to reduce autofixer for no-array-prototype-extensions rule

[tgvrssanthosh]

Summary

Added auto-fixer for no-array-prototype-extensions which replaces uniqBy with reduce.

Description

Recently, the proposal to deprecate array prototype extensions has been approved and got merged. The plan is to add autoFixers to replace ember array prototype extensions with the native array methods. In this PR, an auto fixer has been added which will replace the ember array method uniqBy with the native array method reduce.

Testing

Modified test case to check if the right output is generated after the fix.

[tgvrssanthosh]

@bmish Can you help review this PR?

[tgvrssanthosh]

@bmish Addressed your comments. Please take a relook. Thank you!

[bmish]

Thanks! This autofix output is a bit complicated -- maybe we can follow-up to improve that if a simpler solution becomes available.

[tgvrssanthosh]

Thanks! This autofix output is a bit complicated -- maybe we can follow up to improve that if a simpler solution becomes available.

Agreed. It looks a bit complex. We might have to revisit this in the future.