1 files changed, 9 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/environments/lexical-shadows-global-var.js b/js/src/jit-test/tests/environments/lexical-shadows-global-var.js
new file mode 100644
index 0000000000..9a8a8792b6
--- /dev/null
+++ b/js/src/jit-test/tests/environments/lexical-shadows-global-var.js
@@ -0,0 +1,9 @@
+this.x = "OK";
+
+for (var i = 0; i < 50; i++) {
+  assertEq(x, "OK");
+  if (i === 40) {
+    this.x = "FAIL";
+    evaluate("let x = 'OK';");
+  }
+}