Move kGroupCount out of DependencyGroup enum.

BUG=
R=svenpanne@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/488993004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/objects.cc

@@ -11672,10 +11672,9 @@ const char* DependentCode::DependencyGroupName(DependencyGroup group) {
       return "allocation-site-tenuring-changed";
     case kAllocationSiteTransitionChangedGroup:
       return "allocation-site-transition-changed";
-    default:
-      UNREACHABLE();
-      return "?";
   }
+  UNREACHABLE();
+  return "?";
 }
 
 

src/objects.h

@@ -5885,10 +5885,11 @@ class DependentCode: public FixedArray {
     kAllocationSiteTenuringChangedGroup,
     // Group of code that depends on element transition information in
     // AllocationSites not being changed.
-    kAllocationSiteTransitionChangedGroup,
-    kGroupCount = kAllocationSiteTransitionChangedGroup + 1
+    kAllocationSiteTransitionChangedGroup
   };
 
+  static const int kGroupCount = kAllocationSiteTransitionChangedGroup + 1;
+
   // Array for holding the index of the first code object of each group.
   // The last element stores the total number of code objects.
   class GroupStartIndexes {