1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-eval-21.js b/js/src/jit-test/tests/debug/Frame-eval-21.js
new file mode 100644
index 0000000000..a1fdc8b810
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-eval-21.js
@@ -0,0 +1,33 @@
+// Eval-in-frame with different type on baseline frame with let-scoping
+
+load(libdir + "jitopts.js");
+
+if (!jitTogglesMatch(Opts_BaselineEager))
+  quit(0);
+
+withJitOptions(Opts_BaselineEager, function () {
+  var g = newGlobal({newCompartment: true});
+  var dbg = new Debugger;
+
+  g.h = function h(d) {
+    if (d) {
+      dbg.addDebuggee(g);
+      var f = dbg.getNewestFrame().older;
+      assertEq(f.implementation, "baseline");
+      assertEq(f.environment.getVariable("foo"), 42);
+      f.eval("foo = 'string of 42'");
+    }
+  }
+
+  g.eval("" + function f(d) {
+    if (d) {
+      let foo = 42;
+      g(d);
+      return foo;
+    }
+  });
+
+  g.eval("" + function g(d) { h(d); });
+
+  g.eval("(" + function () { assertEq(f(true), "string of 42"); } + ")();");
+});