[js-perf-test] Fix spread set benchmark.

Bug: v8:7980
Change-Id: I35b24638b5e2995bb6a5cbb5a28d0d186e807ef3
Reviewed-on: https://chromium-review.googlesource.com/c/1278725Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Hai Dang <dhai@google.com>
Cr-Commit-Position: refs/heads/master@{#56591}

test/js-perf-test/ArrayLiteralInitialSpreadLargeSmiSet/run.js

@@ -110,7 +110,7 @@ function CreateBenchmark(name, f) {
 
 CreateBenchmark('ForOf', ForOf);
 CreateBenchmark('ForOfKeys', ForOfKeys);
-CreateBenchmark('ForOfKeys', ForOfValues);
+CreateBenchmark('ForOfValues', ForOfValues);
 CreateBenchmark('Spread', Spread);
 CreateBenchmark('SpreadKeys', SpreadKeys);
 CreateBenchmark('SpreadValues', SpreadValues);