Add a missing Mutex Locker in ResetCurrentInlinedDepth

[loladiro]

Summary

This function reads m_frames, so it needs to lock the mutex like all other function that access m_frames. Found using AddressSanitizer.

lldb/trunk/source/Target/StackFrameList.cpp

StackFrameList::GetCurrentInlinedDepth ()
     {
         return UINT32_MAX;
     }
 }
 
 void
 StackFrameList::ResetCurrentInlinedDepth ()
 {
+    Mutex::Locker locker (m_mutex);
+
     if (m_show_inlined_frames)
     {        
         GetFramesUpTo(0);
         if (m_frames.size() == 0)
             return;
         if (!m_frames[0]->IsInlined())
         {
             m_current_inlined_depth = UINT32_MAX;