Add more safe points in compiler

runtime/vm/heap.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_HEAP_H_
 #define RUNTIME_VM_HEAP_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/flags.h"
@@ skipping 198 matching lines @@
     if (space == kNew) {
       new_weak_tables_[selector] = value;
     } else {
       ASSERT(space == kOld);
       old_weak_tables_[selector] = value;
     }
   }
 
   // Stats collection.
   void RecordTime(int id, int64_t micros) {
-    ASSERT((id >= 0) && (id < GCStats::kDataEntries));
+    ASSERT((id >= 0) && (id < GCStats::kTimeEntries));
     stats_.times_[id] = micros;
   }
 
   void RecordData(int id, intptr_t value) {
     ASSERT((id >= 0) && (id < GCStats::kDataEntries));
     stats_.data_[id] = value;
   }
 
   void UpdateGlobalMaxUsed();
 
@@ skipping 31 matching lines @@
      public:
       Data() {}
       int64_t micros_;
       SpaceUsage new_;
       SpaceUsage old_;
 
      private:
       DISALLOW_COPY_AND_ASSIGN(Data);
     };
 
+    enum { kTimeEntries = 5 };
     enum { kDataEntries = 4 };
 
     Data before_;
     Data after_;
-    int64_t times_[kDataEntries];
+    int64_t times_[kTimeEntries];
     intptr_t data_[kDataEntries];
 
    private:
     DISALLOW_COPY_AND_ASSIGN(GCStats);
   };
 
   static const intptr_t kNewAllocatableSize = 256 * KB;
 
   Heap(Isolate* isolate,
        intptr_t max_new_gen_semi_words,  // Max capacity of new semi-space.
@@ skipping 104 matching lines @@
 // Note: During this scope, the code pages are non-executable.
 class WritableVMIsolateScope : StackResource {
  public:
   explicit WritableVMIsolateScope(Thread* thread);
   ~WritableVMIsolateScope();
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_HEAP_H_