REPL imports not overriding predef

[mpilquist]

Minimized code

Using the develop branch of the fs2 repository and running sbt ;project coreJVM;console:

scala> import fs2.Stream

scala> Stream(1)                                                                                                                                                                
1 |Stream(1)
  |^^^^^^
  |getter Stream in package scala is deprecated since 2.13.0: Use LazyList instead of Stream
val res0: Stream[Int] = Stream(1, <not computed>)

scala> fs2.Stream(1)                                                                                                                                                            
val res1: fs2.Stream[fs2.Pure, Int] = Stream(..)

Despite the explicit import of fs2.Stream, the call to Stream(1) is resolved as a call to scala.Stream(1) instead of fs2.Stream(1).

[som-snytt]

Related to #7635 where resolution is against the class path before repl history.