[HIPIFY][tests][win] Make cudaRegister.cu building on Windows as well

tests/hipify-clang/cudaRegister.cu

@@ -22,7 +22,12 @@ THE SOFTWARE.
 #include<cuda.h>
 #include<cuda_runtime.h>
 #include<iostream>
-#include<unistd.h>
+#ifdef _WIN32
+#include <windows.h>
+#define sleep(x) Sleep(x)
+#else
+#include <unistd.h>
+#endif
 #include<stdio.h>
 #include<malloc.h>
 
@@ -33,7 +38,7 @@ THE SOFTWARE.
 // CHECK: if(status != hipSuccess) {
 #define check(msg, status){ \
 if(status != cudaSuccess) { \
-	printf("%s failed. \n", #msg); \
+  printf("%s failed. \n", #msg); \
 } \
 }