Replace D1 operator overloads with D2 operator overloads - Part 2

[JinShil]

Follow up to #7098 (I missed one)

In support of dlang/dmd#10130

[dlang-bot]

Thanks for your pull request and interest in making D better, @JinShil! We are looking forward to reviewing it, and you should be hearing from a maintainer soon.
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• My PR is fully covered with tests (you can see the coverage diff by visiting the details link of the codecov check)
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Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub fetch digger
dub run digger -- build "master + phobos#7099"

[thewilsonator]

Er that seems like an awful lot of build kite breakage.

[thewilsonator]

Hmm, seems to be network issues.

[JinShil]

All green now.