Adding a test case for expression parser's support for Unicode strings. This is an expected failure for now

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@172493 91177308-0d34-0410-b5e6-96231b3b80d8
Add a few other missing LOG_ types to set_logging() in RNBRemote.cpp;
document some simple bourne shell to re-generate these from the DNBDefs.h
header file in case this needs to be done again in the future.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@172494 91177308-0d34-0410-b5e6-96231b3b80d8