**This commit should cause no rebuilds.**
# Moving Java overrides out of all-packages
All usages of this pattern have been moved to
'let ... in' blocks.
Patterns I searched for:
* `jdk =`
* `jdk_headless =`
* `jre =`
* `jfx =`
The `jing` alias has been moved to aliases.nix, so
update the usage of `jing` in `xmloscopy` to
`jing-trang`.
cassandra was ignored because that derivation
involves code generation.
I ignored grails, because jdk is set to null by
default by an override in all-packages.nix. That
package would need a slightly larger refactor to
deal with.
Packages with a *-native variant were ignored because
those would need to be refactored.
jetbrains was ignored because that might be a special case?
I ignored virtualbox, because I did not want
to touch the usages of the pattern for other
dependencies.
