Fix StreamingWarpImageFilter issue with empty region

Summary

Closes #1963 (closed)

Add a test to demonstrate the issue (currently failing).

Copyright

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Modules/Core/Transform/test/otbStreamingWarpImageFilter.cxx

@@ -86,7 +86,7 @@ int otbStreamingWarpImageFilter(int argc, char* argv[])
   return EXIT_SUCCESS;
 }
 
-int otbStreamingWarpImageFilterEmptyRegion(int, const char**)
+int otbStreamingWarpImageFilterEmptyRegion(int itkNotUsed(argc), char * itkNotUsed(argv) [])
 {
   ImageType:: Pointer inputPtr = ImageType::New();