8056951: pico-optimize contains(Object) methods Summary: use idiiom >= 0 consistently to check for valid index Reviewed-by: mduigou

^build/+
−
^dist/+
−
^drop/+
−
^drop_included/+
−
^webrev/+
−
/nbproject/private/+
−
^.hgtip+
−
.DS_Store+
−