swift

e6113b3d - [cherry-pick release/6.0.0][Sema] Don't clear ParsedUnrecognizedPlatformName when a recognized platform is parsed

[cherry-pick release/6.0.0][Sema] Don't clear ParsedUnrecognizedPlatformName when a recognized platform is parsed The callers of parsePlatformVersionInList need to know if an unrecognized platform was parsed in the whole list. It can get cleared in the case of (unrecognized 1.0, *) but PlatformAndVersions will still be empty. rdar://134207783