Some more typing-related fixes.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@163638 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Target/ThreadPlanCallFunction.cpp b/source/Target/ThreadPlanCallFunction.cpp
index 0491d34..370db07 100644
--- a/source/Target/ThreadPlanCallFunction.cpp
+++ b/source/Target/ThreadPlanCallFunction.cpp
@@ -132,7 +132,7 @@
     m_valid (false),
     m_stop_other_threads (stop_other_threads),
     m_function_addr (function),
-    m_function_sp (NULL),
+    m_function_sp (0),
     m_return_type (return_type),
     m_takedown_done (false),
     m_stop_address (LLDB_INVALID_ADDRESS),
@@ -196,7 +196,7 @@
     m_valid (false),
     m_stop_other_threads (stop_other_threads),
     m_function_addr (function),
-    m_function_sp(NULL),
+    m_function_sp(0),
     m_return_type (return_type),
     m_takedown_done (false),
     m_stop_address (LLDB_INVALID_ADDRESS)