<rdar://problem/10967107>

Don't try and unique anonymous struct/union/class types.

llvm-svn: 151863
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index 9b247c3..7c156c6 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -4759,7 +4759,9 @@
 
                     UniqueDWARFASTType unique_ast_entry;
 
-                    if (GetUniqueDWARFASTTypeMap().Find (type_name_const_str,
+                    // Only try and unique the type if it has a name. 
+                    if (type_name_const_str &&
+                        GetUniqueDWARFASTTypeMap().Find (type_name_const_str,
                                                          this,
                                                          dwarf_cu,
                                                          die,