Add a new GetThreadOriginExtendedBacktrace method to the 
SystemRuntime and SBThread classes.
<rdar://problem/15314369> 

llvm-svn: 194111
diff --git a/lldb/source/Target/SystemRuntime.cpp b/lldb/source/Target/SystemRuntime.cpp
index bac512e..0602166 100644
--- a/lldb/source/Target/SystemRuntime.cpp
+++ b/lldb/source/Target/SystemRuntime.cpp
@@ -65,3 +65,9 @@
     std::vector<ConstString> types;
     return types;
 }
+
+ThreadSP
+SystemRuntime::GetThreadOriginExtendedBacktrace (ThreadSP thread, ConstString type)
+{
+    return ThreadSP();
+}