Add 'batch_mode' to CommandInterpreter.  Modify InputReaders to
not write output (prompts, instructions,etc.) if the CommandInterpreter
is in batch_mode.

Also, finish updating InputReaders to write to the asynchronous stream,
rather than using the Debugger's output file directly.



git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@133162 91177308-0d34-0410-b5e6-96231b3b80d8
9 files changed