diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/lazyparse.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/lazyparse.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+
+function outer() {
+    var xyz = 0;
+    function foo() {
+	function bar() { xyz++; }
+	bar();
+	let x = 3;
+    }
+    foo();
+    assertEq(xyz, 1);
+}
+outer();
+
+function mapfloor(a) {
+  var b = a.map(function(v) {
+        "use strict";
+        try {
+            eval("delete String;");
+        } catch (e) {
+            return e instanceof res;
+        }
+    });
+  var res = "";
+}
+try {
+    mapfloor([1,2]);
+} catch (e) {}
+
+test();
+function test() {
+  try  { 
+    eval('let(z) { with({}) let y = 3; }');
+  } catch(ex) {
+    (function(x) { return !(x) })(0/0)
+  }
+}
+
+testCatch(15);
+function testCatch(y) {
+  try {
+      throw 5;
+  } catch(ex) {
+      (function(x) { assertEq(x + y + ex, 25); })(5)
+  }
+}