macros => foundation
flattens the paths
core => reflection

seeing core/core every time gets a bit old
abstracts away the details of error handling
restores the package object
fleshes out the reflection API
upgrades adt annotations
outlines the host API
pull request feedback
/reflection => /reflection/core
eh is now introduced hygienically
notes on Tree.parent
notes on Tree.attrs
Member.Overloaded => Overload
ascribedTpe => decltpe
cleanup for typechecking APIs
cleanup for trivia-based APIs
removes Pat.tpe
removes universal Member.name
implements Member.ref