xla

76b34fb9 - Add expand symint python test and re-enable some previously disabled dynamic shape tests. (#4581)

Add expand symint python test and re-enable some previously disabled dynamic shape tests. (#4581) * add expand_symint test to replace the cpp counterpart test. * re-enable test AtenXlaTensorTest.TestNonzero * re-enable test TestDynamicShape.test_nonzero_cast * fix linter * remove print * fix pr comment * add test_utils * fix linter * trying to fix more tests. * fix linter * fixed the error * fix linter