diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug799185-7.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug799185-7.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,73 @@
+var y = undefined;
+
+try {} catch (x) {
+    try {} catch (x) {
+        try {} catch (x) {
+        }
+    }
+}
+
+try {} catch (x if y) {
+    try {} catch (x if y) {
+        try {} catch (x if y) {
+        }
+    }
+}
+
+while (false) {
+    try {} catch ({x,y} if x) {
+        try {} catch ({a,b,c,d} if a) {
+            if (b) break;
+            if (c) continue;
+        }
+    } finally {}
+}
+
+Label1:
+for (let foo = 0; foo < 0; foo++) {
+    Label2:
+    for (let bar = 0; bar < 0; bar++) {
+        if (foo) {
+            if (bar)
+                break Label2;
+            continue Label2;
+        } else {
+            if (bar)
+                break Label1;
+            continue Label1;
+        }
+    }
+}
+
+Label3:
+for (let foo = 0; foo < 0; foo++) {
+    Label4:
+    for (let bar = 0; bar < 0; bar++) {
+        if (foo) {
+            if (bar)
+                continue Label4;
+            break Label4;
+        } else {
+            if (bar)
+                continue Label3;
+            break Label3;
+        }
+    }
+}
+
+switch (42) {
+default:
+    try {} catch (x) {
+        if (x + 1) {
+            if (x)
+                break;
+            break;
+        }
+    }
+    break;
+}
+
+try {
+    null.x;
+} catch (x) {
+}