Build error on Xcode 7.3 beta 2 (Swift 2.2)

[norio-nomura]

log:

SwiftLint/Source/SwiftLintFrameworkTests/IntegrationTests.swift:29:54: error: cannot convert value of type 'String' to expected argument type 'StaticString'
XCTFail($0.reason, file: $0.location.file!, line: UInt($0.location.line!))

That is expanding linting result into XCTFail() that introduced on #404:

class IntegrationTests: XCTestCase {
    func testSwiftLintLints() {
        // This is as close as we're ever going to get to a self-hosting linter.
        let directory = (((__FILE__ as NSString)
            .stringByDeletingLastPathComponent as NSString)
            .stringByDeletingLastPathComponent as NSString)
            .stringByDeletingLastPathComponent
        NSFileManager.defaultManager().changeCurrentDirectoryPath(directory)
        let config = Configuration(path: Configuration.fileName)
        let swiftFiles = config.lintableFilesForPath("")
        XCTAssert(swiftFiles.map({$0.path!}).contains(__FILE__), "current file should be included")
        let violations = swiftFiles.flatMap {
            Linter(file: $0, configuration: config).styleViolations
        }
        violations.forEach {
            XCTFail($0.reason, file: $0.location.file!, line: UInt($0.location.line!))
        }
    }
}

Related:
https://bugs.swift.org/browse/SR-308?jql=text%20~%20%22staticstring%22
swiftlang/swift#888
swiftlang/swift-corelibs-xctest#27

😢

[NachoSoto]

Yeah, I opened Quick/Nimble#243 in Nimble with the same issue.