relax this test to just check that the lock prefix is encoded properly, and to not rely on the register allocator's arbitrary operand choices.
relax this test to just check that the lock prefix is encoded properly,
and to not rely on the register allocator's arbitrary operand choices.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@129690 91177308-0d34-0410-b5e6-96231b3b80d8

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