Add %_IncrementStatsCounter intrinsic.

src/compiler/access-builder.h

Index: src/compiler/access-builder.h
diff --git a/src/compiler/access-builder.h b/src/compiler/access-builder.h
index e46a0503aae2076273fbef231e5be1472c99007e..ddbad8c64e7f2b717f1756945f9d2a725a264420 100644
--- a/src/compiler/access-builder.h
+++ b/src/compiler/access-builder.h
@@ -46,6 +46,9 @@ class AccessBuilder FINAL : public AllStatic {
   // Provides access Context slots.
   static FieldAccess ForContextSlot(size_t index);
 
+  // Provides access to the backing store of a StatsCounter.
+  static FieldAccess ForStatsCounter();
+
   // Provides access to FixedArray elements.
   static ElementAccess ForFixedArrayElement();