Update type notation for MethodObject#aliases

[thomthom]

Description

I was generating some stubs from the Yard database, and doing by the docs I thought MethodObject#aliases returned an array of Symbol, but the output included the fully qualified name. Upon inspection I found that the method actually returns an array of MethodObject.

Completed Tasks

• I have read the Contributing Guide.
• The pull request is complete (implemented / written).
• Git commits have been cleaned up (squash WIP / revert commits).
• I wrote tests and ran bundle exec rake locally (if code is attached to PR).

[coveralls]

Coverage remained the same at 93.439% when pulling 5e1dc6b on thomthom:patch-1 into d7a16c5 on lsegal:main.

[lsegal]

Thanks for the quick fix!

[thomthom]

It's so easy when GitHub makes the process of creating a dev branch in my fork in a single click and the offer an online editor to make the change. Drive-by-PR! :D