Fix -Wimport-preprocessor-directive-pedantic warning, NFC.

akyrtzi · akyrtzi · commit b82c141d277c · 2017-02-01T12:57:58.000-08:00
diff --git a/lib/Frontend/AppleHostVersionDetection.h b/lib/Frontend/AppleHostVersionDetection.h
@@ -13,7 +13,7 @@
 #ifndef SWIFT_FRONTEND_APPLEHOSTVERSIONDETECTION_H
 #define SWIFT_FRONTEND_APPLEHOSTVERSIONDETECTION_H
 
-#import "clang/Basic/VersionTuple.h"
+#include "clang/Basic/VersionTuple.h"
 
 namespace swift {
 
