extract Linter.getStyleViolations' parallelFlatMap into Rule.performLint
extract Linter.getStyleViolations' parallelFlatMap into Rule.performLint

victorpimentel/SwiftLint,firebase/SwiftLint,Johnykutty/SwiftLint,realm/SwiftLint,lyft/SwiftLint,jeffreybergier/SwiftLint,firebase/SwiftLint,realm/SwiftLint,firebase/SwiftLint,Johnykutty/SwiftLint,Johnykutty/SwiftLint,jeffreybergier/SwiftLint,Johnykutty/SwiftLint,victorpimentel/SwiftLint,jeffreybergier/SwiftLint,realm/SwiftLint,lyft/SwiftLint,lyft/SwiftLint,victorpimentel/SwiftLint,firebase/SwiftLint,jeffreybergier/SwiftLint,victorpimentel/SwiftLint,realm/SwiftLint,lyft/SwiftLint