fix(jest): interface and string token combination

[omermorad]

Fixed the way tokens are reflected. Now it won't assume the type is defined and will make the best effort to use the token or type name. There are still scenarios that ref -> Object is left, that I think should throw but that's for another PR.

I removed the duplicates check there because I was not sure what it should do (I can bring it back but I need to know how to integrate it correctly).

I also updated some tests and types because I had false positives during development.

Resolves #25
#26

[codecov]

Codecov Report

Merging #30 (cc2da4f) into master (44725cc) will increase coverage by 3.67%.
The diff coverage is 95.45%.

❗ Current head cc2da4f differs from pull request most recent head e7fca28. Consider uploading reports for the commit e7fca28 to get more accurate results

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
+ Coverage   93.58%   97.26%   +3.67%     
==========================================
  Files           6        5       -1     
  Lines          78       73       -5     
  Branches        9       11       +2     
==========================================
- Hits           73       71       -2     
+ Misses          1        0       -1     
+ Partials        4        2       -2     

Flag	Coverage Δ
jest	97.26% <95.45%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/jest/src/lib/mock-resolver.ts	100.00% <ø> (ø)
packages/jest/src/lib/reflectable.decorator.ts	100.00% <ø> (ø)
packages/jest/src/lib/reflector.service.ts	94.11% <94.11%> (ø)
packages/jest/src/lib/test-bed-resolver.ts	100.00% <100.00%> (ø)
packages/jest/src/lib/testbed-factory.ts	100.00% <100.00%> (ø)
packages/jest/src/index.ts

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.