Adapt tests in preparation of shipping --harmony-completion.

test/mjsunit/harmony/do-expressions.js

Index: test/mjsunit/harmony/do-expressions.js
diff --git a/test/mjsunit/harmony/do-expressions.js b/test/mjsunit/harmony/do-expressions.js
index a2c014cbc6f523e7bbba07a2bc5323fa548cd8a7..c3f9e0cd86ae9f458867332e2d5e545cac6cadef 100644
--- a/test/mjsunit/harmony/do-expressions.js
+++ b/test/mjsunit/harmony/do-expressions.js
@@ -4,6 +4,7 @@
 
 // Flags: --harmony-do-expressions --harmony-sloppy-let --allow-natives-syntax
 // Flags: --harmony-default-parameters --harmony-destructuring
+// Flags: --harmony-completion
 
 function returnValue(v) { return v; }
 function MyError() {}
@@ -167,7 +168,10 @@ function TestInParameterInitializers() {
   function fn2(items = do {
     let items = [];
     for (var el of _items) {
-      if (el !== el) break;
+      if (el !== el) {
+        items;
+        break;
+      }
       items.push(el), items;
     }
   }) {