fix(runtime-core): update devtool __vnode on patch, avoid memory leak during dev

close #11192

packages/runtime-core/src/hydration.ts

@@ -17,6 +17,7 @@ import { warn } from './warning'
 import {
   PatchFlags,
   ShapeFlags,
+  def,
   includeBooleanAttr,
   isBooleanAttr,
   isKnownHtmlAttr,
@@ -141,18 +142,8 @@ export function createHydrationFunctions(
     vnode.el = node
 
     if (__DEV__ || __FEATURE_PROD_DEVTOOLS__) {
-      if (!('__vnode' in node)) {
-        Object.defineProperty(node, '__vnode', {
-          value: vnode,
-          enumerable: false,
-        })
-      }
-      if (!('__vueParentComponent' in node)) {
-        Object.defineProperty(node, '__vueParentComponent', {
-          value: parentComponent,
-          enumerable: false,
-        })
-      }
+      def(node, '__vnode', vnode, true)
+      def(node, '__vueParentComponent', parentComponent, true)
     }
 
     if (patchFlag === PatchFlags.BAIL) {

packages/runtime-core/src/renderer.ts

@@ -33,6 +33,7 @@ import {
   NOOP,
   PatchFlags,
   ShapeFlags,
+  def,
   getGlobalThis,
   invokeArrayFns,
   isArray,
@@ -696,15 +697,10 @@ function baseCreateRenderer(
     }
 
     if (__DEV__ || __FEATURE_PROD_DEVTOOLS__) {
-      Object.defineProperty(el, '__vnode', {
-        value: vnode,
-        enumerable: false,
-      })
-      Object.defineProperty(el, '__vueParentComponent', {
-        value: parentComponent,
-        enumerable: false,
-      })
+      def(el, '__vnode', vnode, true)
+      def(el, '__vueParentComponent', parentComponent, true)
     }
+
     if (dirs) {
       invokeDirectiveHook(vnode, null, parentComponent, 'beforeMount')
     }
@@ -805,6 +801,9 @@ function baseCreateRenderer(
     optimized: boolean,
   ) => {
     const el = (n2.el = n1.el!)
+    if (__DEV__ || __FEATURE_PROD_DEVTOOLS__) {
+      el.__vnode = n2
+    }
     let { patchFlag, dynamicChildren, dirs } = n2
     // #1426 take the old vnode's patch flag into account since user may clone a
     // compiler-generated vnode, which de-opts to FULL_PROPS