fix(compiler-core): properly track scope vars in v-for + slot

Author: edison1105

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

@@ -201,7 +201,13 @@ export function buildSlots(
       hasDynamicSlots = true
     }
 
+    let onExit
+    if(!__BROWSER__ && context.prefixIdentifiers){
+      onExit = trackVForSlotScopes(slotElement, context) as () => void
+    }
     const slotFunction = buildSlotFn(slotProps, slotChildren, slotLoc)
+    onExit && onExit()
+
     // check if this slot is conditional (v-if/v-for)
     let vIf: DirectiveNode | undefined
     let vElse: DirectiveNode | undefined

packages/compiler-ssr/__tests__/ssrComponent.spec.ts

@@ -201,7 +201,7 @@ describe('ssr: components', () => {
                     _push(\`\${_ssrInterpolate(msg + key + _ctx.bar)}\`)
                   } else {
                     return [
-                      _createTextVNode(_toDisplayString(msg + _ctx.key + _ctx.bar), 1 /* TEXT */)
+                      _createTextVNode(_toDisplayString(msg + key + _ctx.bar), 1 /* TEXT */)
                     ]
                   }
                 })