Added gdb remote test for one valid qRegisterInfo result.
Added gdb remote test for one valid qRegisterInfo result.

Checks that at at least qRegisterInfo0 responds with a valid
register info reply packet.  The packet is parsed and validates
that all keys come from the documented set of valid keys.  It
then validates that a minimum set of expected keys
are present in the returned packet.

This test is set to pass on debugserver and fail on llgs TOT.


git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@209109 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb