allow string + any -> string and any + string -> string
allow string + any -> string and any + string -> string

swift-lang/swift-k,ya7lelkom/swift-k,ya7lelkom/swift-k,ya7lelkom/swift-k,swift-lang/swift-k,swift-lang/swift-k,ya7lelkom/swift-k,swift-lang/swift-k,ya7lelkom/swift-k,ya7lelkom/swift-k,swift-lang/swift-k,swift-lang/swift-k,swift-lang/swift-k,ya7lelkom/swift-k,swift-lang/swift-k,swift-lang/swift-k,ya7lelkom/swift-k,swift-lang/swift-k,ya7lelkom/swift-k,ya7lelkom/swift-k