o TestHelloWorld.py:

  Add a test case for the SBTarget::AttachToProcessWithID() API call.

o main.c:

  The change goes with the added test case test_with_dwarf_and_attach_to_process_with_id_api() above.

o SBTarget.cpp:

  Checks whether we're in synchronous mode.  If yes, let's wait for the process to stop right after attaching.

llvm-svn: 133223