8065227: Report allocation context stats at end of cleanup

Summary: Moved allocation context update from remark to the cleanup phase.
Reviewed-by: mgerdin, jmasa

src/share/vm/gc_implementation/g1/concurrentMark.cpp

@@ -2175,6 +2175,7 @@ void ConcurrentMark::cleanup() {
   // We reclaimed old regions so we should calculate the sizes to make
   // sure we update the old gen/space data.
   g1h->g1mm()->update_sizes();
+  g1h->allocation_context_stats().update_after_mark();
 
   g1h->trace_heap_after_concurrent_cycle();
 }
@@ -3346,7 +3347,6 @@ void ConcurrentMark::aggregate_count_data() {
   } else {
     g1_par_agg_task.work(0);
   }
-  _g1h->allocation_context_stats().update_at_remark();
 }
 
 // Clear the per-worker arrays used to store the per-region counting data

src/share/vm/gc_implementation/g1/g1AllocationContext.hpp

@@ -45,7 +45,7 @@ class AllocationContextStats: public StackObj {
 public:
   inline void clear() { }
   inline void update(bool full_gc) { }
-  inline void update_at_remark() { }
+  inline void update_after_mark() { }
   inline bool available() { return false; }
 };