Cosmetic changes to tests to make it easier to concatenate them.

src/heap/incremental-marking.cc

Index: src/heap/incremental-marking.cc
diff --git a/src/heap/incremental-marking.cc b/src/heap/incremental-marking.cc
index d8e07aaab9b07b2650f922f1399e039314389ae5..bcb934f327ecadae763fc2b7e344c067b497dccd 100644
--- a/src/heap/incremental-marking.cc
+++ b/src/heap/incremental-marking.cc
@@ -1040,5 +1040,5 @@ void IncrementalMarking::IncrementIdleMarkingDelayCounter() {
 void IncrementalMarking::ClearIdleMarkingDelayCounter() {
   idle_marking_delay_counter_ = 0;
 }
-}
-}  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8