Exclude XFA-only corpus from non-xfa and roll corpus.

Test still need modification to process input events. For now,
we just suppress anything that diffs.

Review URL: https://codereview.chromium.org/1894083003
diff --git a/testing/tools/run_pixel_tests.py b/testing/tools/run_pixel_tests.py
index e2066e4..1595ef7 100755
--- a/testing/tools/run_pixel_tests.py
+++ b/testing/tools/run_pixel_tests.py
@@ -90,7 +90,7 @@
     if input_file_re.match(input_filename):
       input_path = os.path.join(source_dir, input_filename)
       if os.path.isfile(input_path):
-        if test_suppressor.IsSuppressed(input_filename):
+        if test_suppressor.IsResultSuppressed(input_filename):
           continue
         if not generate_and_test(input_filename, source_dir, working_dir,
                                  fixup_path, pdfium_test_path, image_differ,