Apply suggestions from code review

Co-authored-by: Saleem Abdulrasool <[email protected]>

Author: DougGregor

include/swift/Basic/CBasicBridging.h

@@ -55,14 +55,14 @@ typedef __UINT64_TYPE__ __swiftc_uint64_t;
 #else
 typedef unsigned __INT64_TYPE__ __swiftc_uint64_t;
 #endif
-#endif
 
 typedef __INT32_TYPE__ __swiftc_int32_t;
 #ifdef __UINT32_TYPE__
 typedef __UINT32_TYPE__ __swiftc_uint32_t;
 #else
 typedef unsigned __INT32_TYPE__ __swiftc_uint32_t;
 #endif
+#endif
 
 #define __swiftc_join3(a,b,c) a ## b ## c