mips64: modify load_indexed_instructions test

A little style improvement for load_indexed_instructions test including
addition of new instruction to be tested - lhx (supported as of VEX r3152).

Related issue - BZ #345987.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15340 a5019735-40e9-0310-863c-91ae7b9d1cf9
3 files changed