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warn-unused-patvars.scala:9: warning: private val x in trait Boundings is never used
private val x = 42 // warn, sanity check
^
warn-unused-patvars.scala:28: warning: local val x in method v is never used
val D(x) = d // warn, fixme
^
warn-unused-patvars.scala:32: warning: local val x in method w is never used
val D(x @ _) = d // warn, fixme (valdef pos is different)
^
error: No warnings can be incurred under -Xfatal-warnings.
three warnings found
one error found
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