add additional let scoping nested label tests

test/fixtures/transformation/es6-block-scoping-exec/nested-labels-3.js

@@ -0,0 +1,25 @@
+(function () {
+  var stack = [];
+
+  loop1:
+  for (let j = 0; j < 10; j++) {
+    loop2:
+    for (let i = 0; i < 10; i++) {
+      for (let x = 0; x < 10; x++) {
+        stack.push(() => [j, i, x]);
+        continue loop2;
+      }
+    }
+  }
+
+  assert.deepEqual(stack[0](), [0, 0, 0]);
+  assert.deepEqual(stack[1](), [0, 1, 0]);
+  assert.deepEqual(stack[2](), [0, 2, 0]);
+  assert.deepEqual(stack[3](), [0, 3, 0]);
+  assert.deepEqual(stack[4](), [0, 4, 0]);
+  assert.deepEqual(stack[5](), [0, 5, 0]);
+  assert.deepEqual(stack[6](), [0, 6, 0]);
+  assert.deepEqual(stack[7](), [0, 7, 0]);
+  assert.deepEqual(stack[8](), [0, 8, 0]);
+  assert.deepEqual(stack[9](), [0, 9, 0]);
+})();