8137105: [TESTBUG] Add test cases for VM Options file feature with removed file size limit Summary: Update TestVMOptionsFile.java to match fix for 8135195; other minor cleanups. Reviewed-by: dcubed, rdurbin

-Dshared.property=othervalue -XX:MinHeapFreeRatio=13 -Doptfile_1=option_file_1 -Xint -XX:SurvivorRatio=16 -Xminf0.22 -Dshared.property=vmoptfile -XX:+PrintVMOptions