Fix #14576: Ensure unreported warning summaries are also emitted via sbt-bridge #14602
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The sbt-bridge uses a delegating reporter that overrides the base implementation of
printSummary
and delegates to the sbt implementation.However that implementation only provides summary reporting of warning and error counts, and the compiler is responsible for emitting any summary diagnostics regarding unreported warnings.
This commit separates emitting those unreported warning summaries from the base implementation of
Reporter#printSummary
so as not to be overriden by the DelegatingReporter in sbt-bridge.Fixes #14576