enable standard language features in LangOptions #64602
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It's kind of odd how features that are unconditionally enabled, like
Feature::Actors
is not actually satisfyingLangOptions.hasFeature(Feature::Actors)
. This wasn't causing a problem elsewhere when parsing the feature in swiftinterface files becauseEvaluateIfConfigCondition::visitUnresolvedDeclRefExpr
has its own switch over the features (rather than asking if it's enabled). Also, most of the time when someone enables a feature permanently, it's expected that allhasFeature
queries are removed because "it's now always on". Now we actually make sure the feature is always on.