Compiler crashes with a simple source containing inline - no path exists from trait F to <none>

[OndrejSpanel]

Compiler version

3.2.1 - 3.4.2-RC1

Note: This is 3.2.1 regression, the error does not happen with 3.0.0-3.2.0

Minimized code

trait T:

  def v() = ()

  trait F:
    def f(): Unit =
      inline def op(): Unit = v()
      op()

Output (click arrow to expand)

Exception in thread "main" java.lang.ClassCastException: no path exists from class F to

  unhandled exception while running MegaPhase{pruneErasedDefs, uninitialized, inlinePatterns, vcInlineMethods, seqLiterals, intercepted, getters, specializeFunctions, specializeTuples, collectNullableFields, elimOuterSelect, resolveSuper, functionXXLForwarders, paramForwarding, genericTuples, letOverApply, arrayConstructors} on inline-crash.scala

  An unhandled exception was thrown in the compiler.
  Please file a crash report here:
  https://github.com/scala/scala3/issues/new/choose
  For non-enriched exceptions, compile with -Yno-enrich-error-messages.

     while compiling: inline-crash.scala
        during phase: MegaPhase{pruneErasedDefs, uninitialized, inlinePatterns, vcInlineMethods, seqLiterals, intercepted, getters, specializeFunctions, specializeTuples, collectNullableFields, elimOuterSelect, resolveSuper, functionXXLForwarders, paramForwarding, genericTuples, letOverApply, arrayConstructors}
                mode: Mode(ImplicitsEnabled)
     library version: version 2.13.12
    compiler version: version 3.4.1
            settings:

Exception in thread "main" java.lang.ClassCastException: no path exists from trait F to  <none>
        at dotty.tools.dotc.transform.ExplicitOuter$OuterOps$.path$extension(ExplicitOuter.scala:485)
        at dotty.tools.dotc.transform.ElimOuterSelect.transformSelect(ElimOuterSelect.scala:31)
        at dotty.tools.dotc.transform.MegaPhase.goSelect(MegaPhase.scala:632)
        at dotty.tools.dotc.transform.MegaPhase.goSelect(MegaPhase.scala:633)
        at dotty.tools.dotc.transform.MegaPhase.goSelect(MegaPhase.scala:633)
        at dotty.tools.dotc.transform.MegaPhase.goSelect(MegaPhase.scala:633)
        at dotty.tools.dotc.transform.MegaPhase.goSelect(MegaPhase.scala:633)
        at dotty.tools.dotc.transform.MegaPhase.transformNamed$1(MegaPhase.scala:241)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:448)
        at dotty.tools.dotc.transform.MegaPhase.mapValDef$1(MegaPhase.scala:247)
        at dotty.tools.dotc.transform.MegaPhase.transformNamed$1(MegaPhase.scala:252)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:448)
        at dotty.tools.dotc.transform.MegaPhase.loop$3(MegaPhase.scala:482)
        at dotty.tools.dotc.transform.MegaPhase.transformTrees(MegaPhase.scala:482)
        at dotty.tools.dotc.transform.MegaPhase.transformSpecificTrees(MegaPhase.scala:485)
        at dotty.tools.dotc.transform.MegaPhase.transformUnnamed$1(MegaPhase.scala:406)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:450)
        at dotty.tools.dotc.transform.MegaPhase.loop$2$$anonfun$1(MegaPhase.scala:470)
        at dotty.tools.dotc.transform.MegaPhase.loop$2(MegaPhase.scala:472)
        at dotty.tools.dotc.transform.MegaPhase.transformBlock(MegaPhase.scala:472)
        at dotty.tools.dotc.transform.MegaPhase.transformUnnamed$1(MegaPhase.scala:311)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:450)
        at dotty.tools.dotc.transform.MegaPhase.mapDefDef$1(MegaPhase.scala:261)
        at dotty.tools.dotc.transform.MegaPhase.transformNamed$1(MegaPhase.scala:264)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:448)
        at dotty.tools.dotc.transform.MegaPhase.loop$1(MegaPhase.scala:461)
        at dotty.tools.dotc.transform.MegaPhase.transformStats(MegaPhase.scala:461)
        at dotty.tools.dotc.transform.MegaPhase.transformUnnamed$1(MegaPhase.scala:372)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:450)
        at dotty.tools.dotc.transform.MegaPhase.transformNamed$1(MegaPhase.scala:268)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:448)
        at dotty.tools.dotc.transform.MegaPhase.loop$1(MegaPhase.scala:461)
        at dotty.tools.dotc.transform.MegaPhase.transformStats(MegaPhase.scala:461)
        at dotty.tools.dotc.transform.MegaPhase.transformUnnamed$1(MegaPhase.scala:372)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:450)
        at dotty.tools.dotc.transform.MegaPhase.transformNamed$1(MegaPhase.scala:268)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:448)
        at dotty.tools.dotc.transform.MegaPhase.loop$1(MegaPhase.scala:461)
        at dotty.tools.dotc.transform.MegaPhase.transformStats(MegaPhase.scala:461)
        at dotty.tools.dotc.transform.MegaPhase.mapPackage$1(MegaPhase.scala:392)
        at dotty.tools.dotc.transform.MegaPhase.transformUnnamed$1(MegaPhase.scala:395)
        at dotty.tools.dotc.transform.MegaPhase.transformTree(MegaPhase.scala:450)
        at dotty.tools.dotc.transform.MegaPhase.transformUnit(MegaPhase.scala:477)
        at dotty.tools.dotc.transform.MegaPhase.run(MegaPhase.scala:489)
        at dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:354)
        at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
        at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
        at scala.collection.immutable.List.foreach(List.scala:333)
        at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:360)
        at dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:315)
        at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
        at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
        at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
        at dotty.tools.dotc.Run.runPhases$1(Run.scala:337)
        at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:350)
        at dotty.tools.dotc.Run.compileUnits$$anonfun$adapted$1(Run.scala:360)
        at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:69)
        at dotty.tools.dotc.Run.compileUnits(Run.scala:360)
        at dotty.tools.dotc.Run.compileSources(Run.scala:261)
        at dotty.tools.dotc.Run.compile(Run.scala:246)
        at dotty.tools.dotc.Driver.doCompile(Driver.scala:37)
        at dotty.tools.dotc.Driver.process(Driver.scala:196)
        at dotty.tools.dotc.Driver.process(Driver.scala:164)
        at dotty.tools.dotc.Driver.process(Driver.scala:176)
        at dotty.tools.dotc.Driver.main(Driver.scala:206)
        at dotty.tools.MainGenericCompiler$.run$1(MainGenericCompiler.scala:162)
        at dotty.tools.MainGenericCompiler$.main(MainGenericCompiler.scala:186)
        at dotty.tools.MainGenericCompiler.main(MainGenericCompiler.scala)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at coursier.bootstrap.launcher.a.a(Unknown Source)
        at coursier.bootstrap.launcher.Launcher.main(Unknown Source)