8191313: compiler/runtime/SpreadNullArg.java fails in tier1 Summary: corrected SpreadNullArg.java test to expect NullPointerException after 8157246 fix Reviewed-by: dcubed, mchung

^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.src-rev$
^.jib/
\.DS_Store
\.metadata/
\.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt