Combine aliased_table_for and aliased_name_for

This refactoring reduces the number of conditionals needed to build
`aliased_table_for` and removes `aliased_name_for` because it's no
longer necessary.

`aliased_name_for` was also used in `JoinDependency#initialize` so
that was replaced with `aliased_table_for` as well.
Merge pull request #17754 from eileencodes/refactor-aliased_table_for

Combine aliased_table_for and aliased_name_for