Restore tuple-ops.scala in pickling blacklist

liufengyun · liufengyun · commit 38873e0aa213 · 2020-01-14T10:38:49.000+01:00
It's accidentally removed in conflict resolution.
diff --git a/compiler/test/dotc/run-test-pickling.blacklist b/compiler/test/dotc/run-test-pickling.blacklist
@@ -25,3 +25,4 @@ i5257.scala
 i7868.scala
 enum-java
 zero-arity-case-class.scala
+tuple-ops.scala
