diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_5/misc/new-with-non-constructor.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_5/misc/new-with-non-constructor.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+function checkConstruct(thing, buggy) {
+    try {
+        new thing();
+        assertEq(0, 1, "not reached " + thing);
+    } catch (e) {
+        if (buggy)
+            assertEq(String(e.message).indexOf("is not a constructor") === -1, false);
+        else
+            assertEq(String(e.message).indexOf("thing is not a constructor") === -1, false);
+    }
+}
+
+var re = /aaa/
+checkConstruct(re, false);
+
+var boundFunctionPrototype = Function.prototype.bind();
+checkConstruct(boundFunctionPrototype, true);
+
+var boundBuiltin = Math.sin.bind();
+checkConstruct(boundBuiltin, true);
+
+/* We set the proxies construct trap to undefined,
+ * so the call trap is used as constructor.
+ */
+
+var proxiedFunctionPrototype = Proxy.create({}, Function.prototype, undefined);
+checkConstruct(proxiedFunctionPrototype, false);
+
+var proxiedBuiltin = Proxy.create({}, parseInt, undefined);
+checkConstruct(proxiedBuiltin, false);
+
+
+if (typeof reportCompare == 'function')
+    reportCompare(0, 0, "ok");