Added more detailed sweeping timing counters.

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index d4fc8fc0a9f537c287af1deae5fd2ddd2c981da1..a31d664a5dfb76bf11220082fc52e49869194343 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -6121,6 +6121,9 @@ GCTracer::~GCTracer() {
     PrintF("sweep=%.2f ", scopes_[Scope::MC_SWEEP]);
     PrintF("sweepns=%.2f ", scopes_[Scope::MC_SWEEP_NEWSPACE]);
     PrintF("sweepos=%.2f ", scopes_[Scope::MC_SWEEP_OLDSPACE]);
+    PrintF("sweepcode=%.2f ", scopes_[Scope::MC_SWEEP_CODE]);
+    PrintF("sweepcell=%.2f ", scopes_[Scope::MC_SWEEP_CELL]);
+    PrintF("sweepmap=%.2f ", scopes_[Scope::MC_SWEEP_MAP]);
     PrintF("evacuate=%.1f ", scopes_[Scope::MC_EVACUATE_PAGES]);
     PrintF("new_new=%.1f ", scopes_[Scope::MC_UPDATE_NEW_TO_NEW_POINTERS]);
     PrintF("root_new=%.1f ", scopes_[Scope::MC_UPDATE_ROOT_TO_NEW_POINTERS]);