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Fix #4988: Add regression test #6438

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Merged
merged 1 commit into from
May 3, 2019
Merged

Fix #4988: Add regression test #6438

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15 changes: 15 additions & 0 deletions tests/pos/i4988.scala
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Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
object Trees {
class PackageDef
class ValDef
}

class ReplCompiler {
type PackageDef = Trees.PackageDef
type ValDef = Trees.ValDef

def errors[A]: A = ???
def success: ValDef = ???

def typeCheck(cond: Boolean): ValDef =
if (cond) success else errors // failure goes away with `errors[ValDef]`
}