[vm] Fix flipped timeline event names for CollectNewGeneration and EvacuateNewGeneration.

runtime/vm/heap.cc

Index: runtime/vm/heap.cc
diff --git a/runtime/vm/heap.cc b/runtime/vm/heap.cc
index 042c37e4db8bdf7cc872765869dcbd941c911c0d..f73af75a691500ace737cf7f002409c86a3f3011 100644
--- a/runtime/vm/heap.cc
+++ b/runtime/vm/heap.cc
@@ -370,7 +370,7 @@ void Heap::EvacuateNewSpace(Thread* thread, GCReason reason) {
   if (BeginNewSpaceGC(thread)) {
     RecordBeforeGC(kNew, kFull);
     VMTagScope tagScope(thread, VMTag::kGCNewSpaceTagId);
-    TIMELINE_FUNCTION_GC_DURATION(thread, "CollectNewGeneration");
+    TIMELINE_FUNCTION_GC_DURATION(thread, "EvacuateNewGeneration");
     NOT_IN_PRODUCT(UpdateClassHeapStatsBeforeGC(kNew));
     new_space_.Evacuate();
     NOT_IN_PRODUCT(isolate()->class_table()->UpdatePromoted());
@@ -390,7 +390,7 @@ void Heap::CollectNewSpaceGarbage(Thread* thread,
     bool invoke_api_callbacks = (api_callbacks == kInvokeApiCallbacks);
     RecordBeforeGC(kNew, reason);
     VMTagScope tagScope(thread, VMTag::kGCNewSpaceTagId);
-    TIMELINE_FUNCTION_GC_DURATION(thread, "EvacuateNewGeneration");
+    TIMELINE_FUNCTION_GC_DURATION(thread, "CollectNewGeneration");
     NOT_IN_PRODUCT(UpdateClassHeapStatsBeforeGC(kNew));
     new_space_.Scavenge(invoke_api_callbacks);
     NOT_IN_PRODUCT(isolate()->class_table()->UpdatePromoted());