Support for Swift language and Clang modules for ninja generator.

test/mac/swift/AppDelegate.m

+#import "AppDelegate.h"
+#import "swift_mac-Swift.h"
+
+@interface AppDelegate ()
+
+@property(nonatomic, strong) MySwiftClass* swiftField;
+@property(nonatomic, strong) NSWindow* window;
+
+@end
+
+@implementation AppDelegate
+
+@synthesize swiftField, window;
+
+- (void)applicationDidFinishLaunching:(NSNotification*)aNotification {
+//  self.window = [[NSWindow alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
+//  self.window.rootViewController = [[NSViewController alloc] init];
+//  [self.window makeKeyAndVisible];
+
+  self.swiftField = [[MySwiftClass alloc] init];
+}
+
+- (void)applicationWillTerminate:(NSNotification*)aNotification {
+  // Insert code here to tear down your application
+}
+
+@end