refine the attr assert (#1947)

test=develop

lite/core/mir/pattern_matcher.h

@@ -157,16 +157,8 @@ struct PMNode {
 
   template <typename T>
   PMNode* assert_op_attr(const std::string& attr_name, const T& attr) {
-    asserts_.push_back([=](const Node* x) {
-      if (x && x->IsStmt()) {
-        auto* op_info = x->stmt()->op_info();
-        bool cond = (op_info->HasAttr(attr_name) &&
-                     op_info->GetAttr<T>(attr_name) == attr);
-        return cond;
-      }
-      return false;
-    });
-    return this;
+    return assert_op_attr_satisfied<T>(
+        attr_name, [=](const T& src) { return src == attr; });
   }
 
  private: