title: Get all info about a package via importer and reflect?
body: <p>I stumbled across this answer to a question on how to get all the types in a package:</p>
  
  <p><a href="https://stackoverflow.com/a/32142080/470339">https://stackoverflow.com/a/32142080/470339</a></p>
  
  <p>Which works great. However, the next step I'd like to take is then iterate over each of these types to get, for example, <code>NumMethod()</code>. I don't see an immediately obvious way to do so - can anyone shed some light, or will I have to resort to messing with the AST?</p>