修复测试用例问题

packages/amis-core/src/utils/isPureVariable.ts

@@ -5,7 +5,7 @@ export function isPureVariable(path?: any): path is string {
     try {
       const ast = parse(path);
       // 只有一个成员说明是纯表达式模式
-      return ast.body.length === 1;
+      return ast.body.length === 1 && ast.body[0].type === 'script';
     } catch (err) {
       return false;
     }

packages/amis/tsconfig.json

@@ -9,6 +9,6 @@
       "../../node_modules/@types"
     ]
   },
-  "include": ["src/**/*"],
+  "include": ["src/**/*", "../amis-ui/src/custom.d.ts"],
   "references": [{"path": "../amis-core"}, {"path": "../amis-ui"}]
 }