[SPARK-13383][SQL] Fix test

## What changes were proposed in this pull request?

Reverting SPARK-13376 (d563c8f) affects the test added by SPARK-13383. So, I am fixing the test.

Author: Yin Huai <[email protected]>

Closes #11355 from yhuai/SPARK-13383-fix-test.

Author: yhuai

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/JoinOptimizationSuite.scala

@@ -108,8 +108,7 @@ class JoinOptimizationSuite extends PlanTest {
       Project(Seq($"x.key", $"y.key"),
         Join(
           Project(Seq($"x.key"), SubqueryAlias("x", input)),
-          BroadcastHint(
-            Project(Seq($"y.key"), SubqueryAlias("y", input))),
+          Project(Seq($"y.key"), BroadcastHint(SubqueryAlias("y", input))),
           Inner, None)).analyze
 
     comparePlans(optimized, expected)