Updating TestAbbreviations.py to check for a reduced set of instructions when testing 'dis -f'.

Not all of the expected instructions were being generated for the function being disassembled on x86-64-based Linux.  It had no push, pop or leave.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@170818 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed