Fix #12530: Wildcard of value types don't cover null#12533

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liufengyun merged 4 commits intoscala:masterfrom

dotty-staging:fix-12530

May 23, 2021

Commits on May 19, 2021

Fix #12530: Wildcard of value types don't cover null
liufengyun
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Commits on May 20, 2021

Commits on May 23, 2021

Update compiler/src/dotty/tools/dotc/reporting/messages.scala

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