Add passing tests for bug 934789, which was fixed by backing out bug 933798 in rev 175bebe48034. Thanks to luke for test cases. no_r=testonly.

js/src/jit-test/tests/basic/bug934789-1.js

@@ -0,0 +1,13 @@
+if (typeof dis === "function") {
+    (function() {
+        function foo() {}
+
+        dis(function bar(e) {
+            try {
+                (function() { e; });
+            } catch (e) {
+                foo();
+            }
+        });
+    }());
+}

js/src/jit-test/tests/basic/bug934789-2.js

@@ -0,0 +1,15 @@
+load(libdir + "asserts.js");
+assertThrowsInstanceOf(
+    function() {
+        function foo() {}
+        foo = null;
+        (function bar(e) {
+            try {
+                (function() { e; });
+                throw 1;
+            } catch (e) {
+                foo();
+            }
+        })();
+    },
+    TypeError);