Fixed an issue with the Instruction subclasses where the strings might
be fetched too many times and the DisassemblerLLVM was appending to strings
when the opcode, mnemonic and comment accessors were called multiple times
and if any of the strings were empty.

Also fixed the test suite failures from recent Objective C modifications.




git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@148460 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed