chore: add tests for #7016

packages/rspack-test-tools/tests/treeShakingCases/issue-7016/__snapshots__/treeshaking.snap.txt

@@ -0,0 +1,23 @@
+```js title=main.js
+(self['webpackChunkwebpack'] = self['webpackChunkwebpack'] || []).push([["main"], {
+"./index.js": (function () {
+if (true) {
+  const hasConsole = typeof console !== 'undefined';
+  const warn = (msg) => {
+    if (hasConsole) {
+      console.warn(msg)
+    }
+  }
+  warn()
+}
+
+
+}),
+
+},function(__webpack_require__) {
+var __webpack_exec__ = function(moduleId) { return __webpack_require__(__webpack_require__.s = moduleId) }
+var __webpack_exports__ = (__webpack_exec__("./index.js"));
+
+}
+]);
+```

packages/rspack-test-tools/tests/treeShakingCases/issue-7016/index.js

@@ -0,0 +1,9 @@
+if (true) {
+  const hasConsole = typeof console !== 'undefined';
+  const warn = (msg) => {
+    if (hasConsole) {
+      console.warn(msg)
+    }
+  }
+  warn()
+}

packages/rspack-test-tools/tests/treeShakingCases/issue-7016/rspack.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+
+}