Change a use of Iterable.forEach, which isn't available under Desugar.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=260986815

Author: cpovirk

guava-testlib/src/com/google/common/collect/testing/SpliteratorTester.java

@@ -185,8 +185,9 @@ public final Ordered expect(Iterable<?> elements) {
     return new Ordered() {
       @Override
       public void inOrder() {
-        resultsForAllStrategies.forEach(
-            resultsForStrategy -> assertEqualInOrder(elements, resultsForStrategy));
+        for (List<E> resultsForStrategy : resultsForAllStrategies) {
+          assertEqualInOrder(elements, resultsForStrategy);
+        }
       }
     };
   }