- Support for Python namespaces:

  If you have a Python module foo, in order to use its contained objects in LLDB you do not need to use
  'from foo import *'. You can use 'import foo', and then refer to items in foo as 'foo.bar', and LLDB
  will know how to resolve bar as a member of foo.
  Accordingly, GNU libstdc++ formatters have been moved from the global namespace to gnu_libstdcpp and a few
  test cases are also updated to reflect the new convention. Python docs suggest using a plain 'import' en lieu of
  'from-import'.

llvm-svn: 138244