Various crashes with scala -optimize (AssertionError)

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=== What steps will reproduce the problem (please be specific and use wikiformatting)? ===

~ #>scala -optimise 
Welcome to Scala version 2.9.0.r24315-b20110221020106 (OpenJDK 64-Bit Server VM, Java 1.6.0_20).
Type in expressions to have them evaluated.
Type :help for more information.

scala> val a = Array(1,2,3,4,5,6,7)
a: Array[Int] = Array(1, 2, 3, 4, 5, 6, 7)

scala> a transform (2*)
java.lang.AssertionError: assertion failed
	at scala.Predef$$.assert(Predef.scala:86)
	at scala.tools.nsc.transform.Mixin.mixinImplClassMembers$$1(Mixin.scala:253)
	at scala.tools.nsc.transform.Mixin$$$$anonfun$$addMixedinMembers$$3.apply(Mixin.scala:343)
	at scala.tools.nsc.transform.Mixin$$$$anonfun$$addMixedinMembers$$3.apply(Mixin.scala:337)
	at scala.collection.LinearSeqOptimized$$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.tools.nsc.transform.Mixin.addMixedinMembers(Mixin.scala:337)
	at scala.tools.nsc.transform.Mixin.addMixedinMembers(Mixin.scala:247)
	at scala.tools.nsc.transform.Mixin$$MixinTransformer.preTransform(Mixin.scala:496)
	at scala.tools.nsc.transform.Mixin$$MixinTransformer.transform(Mixin.scala:1213)
	at scala.tools.nsc.ast.Trees$$Transformer.transformTemplate(Trees.scala:861)
	at scala.tools.nsc.ast.Trees$$Transformer$$$$anonfun$$transform$$2.apply(Trees.scala:753)
	at scala.tools.nsc.ast.Trees$$Transformer$$$$anonfun$$transform$$2.apply(Trees.scala:752)
	at scala.tools.nsc.ast.Trees$$Transformer.atOwner(Trees.scala:885)
	at scala.tools.nsc.ast.Trees$$Transformer.transform(Trees.scala:751)
	at scala.tools.nsc.transform.Mixin$$MixinTransformer.transform(Mixin.scala:1213)
	at scala.tools.nsc.ast.Trees$$Transformer$$$$anonfun$$transformStats$$1.apply(Trees.scala:877)
	at scala.tools.nsc.ast.Trees$$Transformer$$$$anonfun$$transformStats$$1.apply(Trees.scala:875)
	at scala.collection.immutable.List.loop$$1(List.scala:117)
	at scala.collection.immutable.List.mapConserve(List.scala:133)
	at scala.tools.nsc.ast.Trees$$Transformer.transformStats(Trees.scala:875)
	at scala.tools.nsc.ast.Trees$$Transformer$$$$anonfun$$transform$$1.apply(Trees.scala:747)
	at scala.tools.nsc.ast.Trees$$Transformer$$$$anonfun$$transform$$1.apply(Trees.scala:747)
	at scala.tools.nsc.ast.Trees$$Transformer.atOwner(Trees.scala:885)
	at scala.tools.nsc.ast.Trees$$Transformer.transform(Trees.scala:746)
	at scala.tools.nsc.transform.Mixin$$MixinTransformer.transform(Mixin.scala:1213)
	at scala.tools.nsc.ast.Trees$$Transformer.transformUnit(Trees.scala:878)
	at scala.tools.nsc.transform.Transform$$Phase.apply(Transform.scala:30)
	at scala.tools.nsc.Global$$GlobalPhase$$$$anonfun$$applyPhase$$1.apply(Global.scala:325)
	at scala.tools.nsc.Global$$GlobalPhase$$$$anonfun$$applyPhase$$1.apply(Global.scala:325)
	at scala.tools.nsc.reporters.Reporter.withSource(Reporter.scala:47)
	at scala.tools.nsc.Global$$GlobalPhase.applyPhase(Global.scala:325)
	at scala.tools.nsc.Global$$GlobalPhase$$$$anonfun$$run$$1.apply(Global.scala:294)
	at scala.tools.nsc.Global$$GlobalPhase$$$$anonfun$$run$$1.apply(Global.scala:294)
	at scala.collection.Iterator$$class.foreach(Iterator.scala:646)
	at scala.collection.mutable.ListBuffer$$$$anon$$1.foreach(ListBuffer.scala:311)
	at scala.tools.nsc.Global$$GlobalPhase.run(Global.scala:294)
	at scala.tools.nsc.Global$$Run.compileSources(Global.scala:882)
	at scala.tools.nsc.interpreter.IMain$$ReadEvalPrint.compileAndSaveRun(IMain.scala:706)
	at scala.tools.nsc.interpreter.IMain$$ReadEvalPrint.compile(IMain.scala:674)
	at scala.tools.nsc.interpreter.IMain$$Request.compile(IMain.scala:818)
	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:576)
	at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:542)
	at scala.tools.nsc.interpreter.ILoop.reallyInterpret$$1(ILoop.scala:669)
	at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:721)
	at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:554)
	at scala.tools.nsc.interpreter.ILoop.processLine$$1(ILoop.scala:445)
	at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:452)
	at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:789)
	at scala.tools.nsc.interpreter.ILoop.main(ILoop.scala:814)
	at scala.tools.nsc.MainGenericRunner$$.process(MainGenericRunner.scala:76)
	at scala.tools.nsc.MainGenericRunner$$.main(MainGenericRunner.scala:32)
	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

The repl compiler has crashed spectacularly. Shall I replay your
session? I can re-run all lines except the last one.
[y/n]
Abandoning crashed session.

=== What is the expected behavior? ===
It should work like without -optimize

=== What do you see instead? ===
It crashes.

=== What versions of the following are you using? ===

• Scala: 2.9.0.r24315-b20110221020106
• Java: OpenJDK 64-Bit Server VM, Java 1.6.0_20

[scabug]

Imported From: https://issues.scala-lang.org/browse/SI-4285?orig=1
Reporter: @soc

[scabug]

@soc said:
The first example bug from #3702 also crashes with almost the same stacktrace.

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@paulp said:
Fixed in r24353. Also r24352 has a separate fix for ListBuffer which involved it over-iterating on this same method.