fix(v-model): should use dynamic directive on input with dynamic v-bind

packages/compiler-core/src/utils.ts

@@ -205,6 +205,17 @@ export function findProp(
   }
 }
 
+export function hasDynamicKeyVBind(node: ElementNode): boolean {
+  return node.props.some(
+    p =>
+      p.type === NodeTypes.DIRECTIVE &&
+      p.name === 'bind' &&
+      (!p.arg || // v-bind="obj"
+      p.arg.type !== NodeTypes.SIMPLE_EXPRESSION || // v-bind:[_ctx.foo]
+        !p.arg.isStatic) // v-bind:[foo]
+  )
+}
+
 export function createBlockExpression(
   blockExp: BlockCodegenNode,
   context: TransformContext