missing peer: @ember/test-helpers

[NullVoxPopuli]

This package imports from @ember/test-helpers, yet does not declare it in package.json. how is any reasonable package manager supposed to allow access to @ember/test-helpers without a declaration?

[chriskrycho]

Nope, that would indeed not work! Just a miss during various rebases and merges while landing all the types support. Fixed via #1012; thanks!