Merge "Revert "Ignore libcore.java.lang.OldSystemTest#test_gc failures with CC."" am: f9eed16e am: 1151e83a am: 03d9dffa * commit '03d9dffa': Revert "Ignore libcore.java.lang.OldSystemTest#test_gc failures with CC." Change-Id: I17ec4ea45ed102d7e7434244bad2451d3e14960a