fix compile errors

quick.done goes through and one can launch a repl via build/quick/bin/scala.

pack.partest-extras however gets tripped up by virtualization and reports

    [quick.partest-extras] /Users/me/scala/src/partest-extras/scala/tools/partest/ASMConverters.scala:50: error: not found: value __ifThenElse
    [quick.partest-extras]    def op(i: asm.tree.AbstractInsnNode) = if (asm.util.Printer.OPCODES.isDefinedAt(i.getOpcode)) asm.util.Printer.OPCODES(i.getOpcode) else "?"
    [quick.partest-extras]                                           ^
    [quick.partest-extras] /Users/me/scala/src/partest-extras/scala/tools/partest/ASMConverters.scala:51: error: not found: value __ifThenElse
    [quick.partest-extras]    def lst[T](xs: java.util.List[T]): List[T] = if (xs == null) Nil else xs.asScala.toList
    [quick.partest-extras]                                                 ^
    [quick.partest-extras] /Users/me/scala/src/partest-extras/scala/tools/partest/ASMConverters.scala:51: error: not found: value __equal
    [quick.partest-extras]    def lst[T](xs: java.util.List[T]): List[T] = if (xs == null) Nil else xs.asScala.toList
    [quick.partest-extras]                                                        ^
    [quick.partest-extras] /Users/me/scala/src/partest-extras/scala/tools/partest/AsmNode.scala:21: error: not found: value __ifThenElse
    [quick.partest-extras]   private def accessString     = if (access == 0) "" else " " + Modifier.toString(access)