Rename extended backtrace methods to take out the "ThreadOrigin"
bit from the method names.
<rdar://problem/15314369> 

llvm-svn: 194122
diff --git a/lldb/source/Target/SystemRuntime.cpp b/lldb/source/Target/SystemRuntime.cpp
index 0602166..7ce150f 100644
--- a/lldb/source/Target/SystemRuntime.cpp
+++ b/lldb/source/Target/SystemRuntime.cpp
@@ -60,14 +60,14 @@
 }
 
 std::vector<ConstString>
-SystemRuntime::GetThreadOriginExtendedBacktraceTypes ()
+SystemRuntime::GetExtendedBacktraceTypes ()
 {
     std::vector<ConstString> types;
     return types;
 }
 
 ThreadSP
-SystemRuntime::GetThreadOriginExtendedBacktrace (ThreadSP thread, ConstString type)
+SystemRuntime::GetExtendedBacktrace (ThreadSP thread, ConstString type)
 {
     return ThreadSP();
 }