1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-eval-27.js b/js/src/jit-test/tests/debug/Frame-eval-27.js
new file mode 100644
index 0000000000..38553c1967
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-eval-27.js
@@ -0,0 +1,13 @@
+// Bug 1026477: Defining functions with D.F.p.eval works, even if there's
+// already a var binding for the identifier.
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+dbg.onDebuggerStatement = function (frame) {
+  frame.eval('function f() { }');
+};
+
+// When the compiler sees the 'debugger' statement, it marks all variables as
+// aliased, so f will live in a Call object.
+assertEq(typeof g.eval('(function () { var f = 42; debugger; return f;})();'),
+         "function");