REPL stack trace not truncated on head

[som-snytt]

Compiler version

➜ dotty git:(4e2c2a2) ./bin/scalac -version
Scala compiler version 3.0.1-RC2-bin-SNAPSHOT-git-4e2c2a2 -- Copyright 2002-2021, LAMP/EPFL

Minimized code

➜  dotty git:(review/migrate-scala2-7671) scala
scala> ???
scala.NotImplementedError: an implementation is missing
  at scala.Predef$.$qmark$qmark$qmark(Predef.scala:345)
  ... 28 elided

scala>
➜  dotty git:(4e2c2a2c68) ./bin/scala
Building Dotty...
scala> ???
scala.NotImplementedError: an implementation is missing
  at scala.Predef$.$qmark$qmark$qmark(Predef.scala:344)
  at repl$.rs$line$1$.<clinit>(rs$line$1:1)
  at repl$.rs$line$1.res0(rs$line$1)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:567)
  at dotty.tools.repl.Rendering.$anonfun$3(Rendering.scala:115)
  at scala.Option.map(Option.scala:242)
  at dotty.tools.repl.Rendering.valueOf(Rendering.scala:115)
  at dotty.tools.repl.Rendering.renderVal(Rendering.scala:152)
  at dotty.tools.repl.ReplDriver.$anonfun$13(ReplDriver.scala:323)
  at scala.collection.immutable.List.flatMap(List.scala:293)
  at scala.collection.immutable.List.flatMap(List.scala:79)
  at dotty.tools.repl.ReplDriver.extractAndFormatMembers$1(ReplDriver.scala:323)
  at dotty.tools.repl.ReplDriver.renderDefinitions$$anonfun$2(ReplDriver.scala:346)
  at scala.Option.map(Option.scala:242)
  at dotty.tools.repl.ReplDriver.renderDefinitions(ReplDriver.scala:349)
  at dotty.tools.repl.ReplDriver.compile$$anonfun$2(ReplDriver.scala:268)
  at scala.util.Either.fold(Either.scala:189)
  at dotty.tools.repl.ReplDriver.compile(ReplDriver.scala:285)
  at dotty.tools.repl.ReplDriver.interpret(ReplDriver.scala:212)
  at dotty.tools.repl.ReplDriver.loop$1(ReplDriver.scala:146)
  at dotty.tools.repl.ReplDriver.runUntilQuit$$anonfun$1(ReplDriver.scala:149)
  at dotty.tools.repl.ReplDriver.withRedirectedOutput(ReplDriver.scala:168)
  at dotty.tools.repl.ReplDriver.runUntilQuit(ReplDriver.scala:149)
  at dotty.tools.repl.ReplDriver.tryRunning(ReplDriver.scala:115)
  at dotty.tools.repl.Main$.main(Main.scala:6)
  at dotty.tools.repl.Main.main(Main.scala)

Output

Shows full stack trace.

Expectation

Truncated stack trace.

I'll take a look in a short while.

[som-snytt]

Actually a bug. I didn't add a test for the test to inspect the stack, so naturally it regressed.

[griggt]

Thanks, I didn't think to look there when I added package wrapping. Tests are good. :)