Extraordinary rendition in REPL

[som-snytt]

Compiler version

3.1.0, 3.1.1

Minimized code

scala> val (x,y) = if true then "" else (42,17)
scala.MatchError:  (of class java.lang.String)
  ... 30 elided
java.lang.NoClassDefFoundError: Could not initialize class repl$.rs$line$3$
  at repl$.rs$line$3.y(rs$line$3)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:568)
  at dotty.tools.repl.Rendering.$anonfun$3(Rendering.scala:116)
  at scala.Option.map(Option.scala:242)
  at dotty.tools.repl.Rendering.valueOf(Rendering.scala:116)
  at dotty.tools.repl.Rendering.renderVal(Rendering.scala:153)
  at dotty.tools.repl.ReplDriver.$anonfun$13(ReplDriver.scala:325)
  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:325)
  at dotty.tools.repl.ReplDriver.renderDefinitions$$anonfun$2(ReplDriver.scala:348)
  at scala.Option.map(Option.scala:242)
  at dotty.tools.repl.ReplDriver.renderDefinitions(ReplDriver.scala:351)
  at dotty.tools.repl.ReplDriver.compile$$anonfun$2(ReplDriver.scala:269)
  at scala.util.Either.fold(Either.scala:189)
  at dotty.tools.repl.ReplDriver.compile(ReplDriver.scala:286)
  at dotty.tools.repl.ReplDriver.interpret(ReplDriver.scala:218)

Output

java.lang.NoClassDefFoundError: Could not initialize class repl$.rs$line$3$

Same under -source future.

➜  dotty git:(test/current) ./bin/scala -source future
Welcome to Scala 3.1.3-RC1-bin-SNAPSHOT-git-fd97aee (17.0.2, Java OpenJDK 64-Bit Server VM).
Type in expressions for evaluation. Or try :help.

scala> val (x,y) = if true then "" else (42,17)
1 warning found
-- Warning: -------------------------------------------------------------------------------------------------------------------------------------
1 |val (x,y) = if true then "" else (42,17)
  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |            pattern's type (Int, Int) is more specialized than the right hand side expression's type ("" : String) | (Int, Int)
  |
  |            If the narrowing is intentional, this can be communicated by adding `: @unchecked` after the expression.
scala.MatchError:  (of class java.lang.String)
  ... 33 elided
java.lang.NoClassDefFoundError: Could not initialize class rs$line$1$
  at rs$line$1.y(rs$line$1)

Expectation

More like

scala> val 1 = 2
scala.MatchError: 2 (of class java.lang.Integer)
  ... 22 elided

scala>