swift

fdd724aa - Forward -sanitize flags to -compile-module-from-interface subinvocations

Forward -sanitize flags to -compile-module-from-interface subinvocations \#88564 started passing fsanitize flags to the clang importer. This means that compliations via the clang importer may use different LangOpts or target features (e.g. +mte for `-sanitize memtag-stack`). I ran into an issue where it appears that `-sanitize memtag-stack` and its implied +mte target feature are not being uniformly applied. This causes PCMs to be rejected: ``` error: precompiled file '<redacted>' was compiled with the target feature '+mte' but the current translation unit is not ``` It looks like this is because -sanitize options are not inherited in `InterfaceSubContextDelegateImpl::inheritOptionsForBuildingInterface`. rdar://185067740