Update LLDB snapshot to upstream r216948 (git 50f7fe44)

This is approximately "LLDB 3.5" although with a little bit of skew,
and will go along with the Clang 3.5 import.

Sponsored by:	DARPA, AFRL

1 files changed, 1 insertions, 1 deletions

diff --git a/contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCommon.cpp b/contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCommon.cpp
index 697dc7e..650d252 100644
--- a/contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCommon.cpp
+++ b/contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCommon.cpp
@@ -36,7 +36,7 @@ ClangExternalASTSourceCommon::GetMetadata (const void *object)
     if (HasMetadata (object))
         return &m_metadata[object];
     else
-        return NULL;
+        return nullptr;
 }
 
 void