feat: compatible with Vue 2.x

packages/babel-helper-vue-compatible-props/README.md

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+# @ant-design-vue/babel-helper-vue-compatible-props
+
+> compatible with Vue 2.x

packages/babel-helper-vue-compatible-props/index.js

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+const transformOn = require('@ant-design-vue/babel-helper-vue-transform-on');
+
+const compatibleProps = (attr) => {
+  const {
+    props, on = {}, attrs, ...rest
+  } = attr || {};
+  return {
+    ...props, ...attrs, ...transformOn(on), ...rest,
+  };
+};
+
+module.exports = compatibleProps;

packages/babel-helper-vue-compatible-props/package.json

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+{
+  "name": "@ant-design-vue/babel-helper-vue-compatible-props",
+  "version": "1.0.0",
+  "description": "compatible with Vue 2.x",
+  "author": "Amour1688 <lcz_1996@foxmail.com>",
+  "homepage": "https://github.com/vueComponent/jsx#readme",
+  "license": "MIT",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/vueComponent/jsx.git"
+  },
+  "dependencies": {
+    "@ant-design-vue/babel-helper-vue-transform-on": "^1.0.1"
+  }
+}