added failing unit tests for syntactic sugar rule, as the message contains characters '<' and '>' which are not allowed in xml or html
added failing unit tests for syntactic sugar rule, as the message contains characters '<' and '>' which are not allowed in xml or html

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