Merge "Import sources from xalan-tests xalan-j_2_7_3-rc10" am: 52bcda7324

Original change: https://android-review.googlesource.com/c/platform/external/apache-xml/+/2643660

Change-Id: I37ecfcf287a7bc6f50ae6c523e0fab7f32546d31
Signed-off-by: Automerger Merge Worker <[email protected]>