Support for Swift language and Clang modules for ninja generator.

test/mac/swift/MyObjcTest.m

Index: test/mac/swift/MyObjcTest.m
diff --git a/test/mac/swift/MyObjcTest.m b/test/mac/swift/MyObjcTest.m
new file mode 100644
index 0000000000000000000000000000000000000000..b54f49c078e5d8b7ed33c9b6ed20e7daee75bb2d
--- /dev/null
+++ b/test/mac/swift/MyObjcTest.m
@@ -0,0 +1,16 @@
+#import <XCTest/XCTest.h>
+
+#import "MyObjcClass.h"
+
+@interface MyObjcTest : XCTestCase
+
+@end
+
+@implementation MyObjcTest
+
+- (void)testObjc {
+  MyObjcClass* obj = [[MyObjcClass alloc] init];
+  XCTAssert(obj.intField == 0);
+}
+
+@end