reuben olinsky

(Filing on behalf of joelday)

###### Merge Checklist **All** boxes should be checked before merging the PR *(just tick any boxes which don't apply to this PR)* - [X] The toolchain has been rebuilt successfully...

mock: upgrade and port from extended to core (including dependencies)

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###### Merge Checklist **All** boxes should be checked before merging the PR *(just tick any boxes which don't apply to this PR)* - [X] The toolchain has been rebuilt successfully...