Index: lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
===================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
@@ -328,7 +328,7 @@
                         }
                     }
 
-                    if (tag == DW_TAG_typedef)
+                    if (tag == DW_TAG_typedef && encoding_uid.IsValid())
                     {
                         // Try to parse a typedef from the DWO file first as modules
                         // can contain typedef'ed structures that have no names like: