Symbol may not have a demangled name, use GetName to get the best name available in this case.

llvm-svn: 131527

lldb/source/Commands/CommandCompletions.cpp

@@ -633,7 +633,7 @@ CommandCompletions::SymbolCompleter::SearchCallback (
                 }
                 else if (sc.symbol && sc.symbol->GetAddressRangePtr())
                 {
-                    m_match_set.insert (sc.symbol->GetMangled().GetDemangledName());
+                    m_match_set.insert (sc.symbol->GetMangled().GetName());
                 }
             }
         }