JAL-2154 major rejigging of test looping again

JAL-2154 major rejigging of test looping again
probably not 100% correct, but now fails when:

Recovered view for 'UNIPROT P01731 -> EMBL{1} -> ENSEMBL{0}' from '/var/folders/km/m8_86nbd4bbcpd5s2h8xqtk4_kj190/T/crossRefTest9144214145355720129.jvp'

Cause is:
Parsing as Jalview Version 2 file failed.
java.lang.ArrayIndexOutOfBoundsException: 73
	at jalview.gui.Jalview2XML.loadFromObject(Jalview2XML.java:2827)
	at jalview.gui.Jalview2XML.loadJalviewAlign(Jalview2XML.java:2390)
	at jalview.gui.Jalview2XML.loadJalviewAlign(Jalview2XML.java:2277)
	at jalview.io.FileLoader.run(FileLoader.java:308)
	at java.lang.Thread.run(Thread.java:745)