Fix libstdc++ build

- Add missing operator= definition for DelayedAddObjCClassProperty
- needed to be compatible with libstdc++ vector implementation

llvm-svn: 167747

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp

@@ -1503,6 +1503,11 @@ public:
     }
     
     DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs)
+    {
+      *this = rhs;
+    }
+
+    DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs)
     {
         m_ast                  = rhs.m_ast;
         m_class_opaque_type    = rhs.m_class_opaque_type;
@@ -1518,7 +1523,7 @@ public:
             m_metadata_ap.reset (new ClangASTMetadata());
             *(m_metadata_ap.get()) = *(rhs.m_metadata_ap.get());
         }
-        
+        return *this;
     }
     
     bool Finalize() const