     do {
       struct MockExecutor: DriverExecutor {
         let resolver: ArgsResolver
-        
+
         func execute(job: Job, forceResponseFiles: Bool, recordedInputModificationDates: [TypedVirtualPath : Date]) throws -> ProcessResult {
           return ProcessResult(arguments: [], environment: [:], exitStatus: .terminated(code: 0), output: .success(Array("bad JSON".utf8)), stderrOutput: .success([]))
         }

      XCTAssertFalse(cmd.contains(.flag("-dylib")))
      XCTAssertFalse(cmd.contains(.flag("-shared")))
    }
    
    do {
      // lto linking
      // Locating relevant libraries is dependent on being a macOS host

  }

  func testVerboseImmediateMode() throws {
    #if os(macOS) && arch(arm64)
      // Temporarily disabled on Apple Silicon
      // rdar://80558898
      throw XCTSkip()
    #endif

// There is nothing particularly macOS-specific about this test other than
// the use of some macOS-specific XCTest functionality to determine the
// test bundle that contains the swift-driver executable.
