fix(compiler-core): handle v-memo in template v-for

Author: edison1105

packages/compiler-core/__tests__/transforms/__snapshots__/vMemo.spec.ts.snap

@@ -36,7 +36,7 @@ exports[`compiler: v-memo transform on template v-for 1`] = `
 export function render(_ctx, _cache) {
   return (_openBlock(), _createElementBlock(\\"div\\", null, [
     (_openBlock(true), _createElementBlock(_Fragment, null, _renderList(_ctx.list, ({ x, y }, __, ___, _cached) => {
-      const _memo = ([x, y === z])
+      const _memo = ([x, y === _ctx.z])
       if (_cached && _cached.key === x && _isMemoSame(_cached, _memo)) return _cached
       const _item = (_openBlock(), _createElementBlock(\\"span\\", { key: x }, \\"foobar\\"))
       _item.memo = _memo

packages/compiler-core/src/transforms/vFor.ts

@@ -60,6 +60,14 @@ export const transformFor = createStructuralDirectiveTransform(
         forNode.source
       ]) as ForRenderListExpression
       const memo = findDir(node, 'memo')
+
+      if (memo && isTemplateNode(node)) {
+        memo.exp = processExpression(
+          memo.exp! as SimpleExpressionNode,
+          context
+        )
+      }
+
       const keyProp = findProp(node, `key`)
       const keyExp =
         keyProp &&