Update LLDB snapshot to upstream r202189

Highlights include:

- Support hardware watchpoints on FreeBSD
  (r201706)

- Improved unwinding through hand-written assembly functions
  (r201839)

- Handle DW_TAG_unspecified_parameters for variadic functions
  (r202061)

- Fix Ctrl+C interrupting a running inferior process
  (r202086, r202154)

- Various bug fixes, including to the remote GDB protocol client

Sponsored by:	DARPA, AFRL

1 files changed, 6 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Interpreter/PythonDataObjects.cpp b/contrib/llvm/tools/lldb/source/Interpreter/PythonDataObjects.cpp
index 01f2754..053ff34 100644
--- a/contrib/llvm/tools/lldb/source/Interpreter/PythonDataObjects.cpp
+++ b/contrib/llvm/tools/lldb/source/Interpreter/PythonDataObjects.cpp
@@ -84,6 +84,12 @@ PythonObject::Str ()
     return PythonString(str);
 }
 
+bool
+PythonObject::IsNULLOrNone () const
+{
+    return ((m_py_obj == nullptr) || (m_py_obj == Py_None));
+}
+
 //----------------------------------------------------------------------
 // PythonString
 //----------------------------------------------------------------------