Instances are permanently modified at runtime when ':call' option is used

[thebigw4lrus]

Context

Declaring a dependency with the ':call' option, and using this class two times in the same execution process.

Problem

It seems that the declared dependencies are permanently modified as 'call' method is added to them. This ends up in a Injectable::MethodAlreadyExistsException as Injectable is actually checking that the call method does not exist in the dependency when it tries to do the monkey patch.

How to recreate it

[5] pry(main)> class SomeClass
[5] pry(main)*   include Injectable
[5] pry(main)*   dependency(:dep, call: :name) { Object }
[5] pry(main)*   def call
[5] pry(main)*     dep.call
[5] pry(main)*   end
[5] pry(main)* end
=> :call
[6] pry(main)> SomeClass.call
=> "Object"
[7] pry(main)> SomeClass.call
Injectable::MethodAlreadyExistsException: Injectable::MethodAlreadyExistsException
from /Library/Ruby/Gems/2.6.0/gems/injectable-2.0.0/lib/injectable/dependency.rb:20:in `wrap_call'

[iovis]

It seems like when the target is a class, the :call method is being persisted. I'll have to think of a less permanent way of adding that :call aliasing

[iovis]

Look into whether we can add dynamic refinements

[iovis]

Fixed in #17