Move input/output counts directly into Operators, simplying OperatorProperties.

src/compiler/common-operator.h

Index: src/compiler/common-operator.h
diff --git a/src/compiler/common-operator.h b/src/compiler/common-operator.h
index 31c3d129e2257a8b553a6955e1a09333b1d99246..79ff7782202197269b433ebd01caf56b055d40d3 100644
--- a/src/compiler/common-operator.h
+++ b/src/compiler/common-operator.h
@@ -19,7 +19,7 @@ namespace compiler {
 
 // Forward declarations.
 class CallDescriptor;
-struct CommonOperatorBuilderImpl;
+struct CommonOperatorGlobalCache;
 class Operator;
 
 
@@ -172,7 +172,7 @@ class CommonOperatorBuilder FINAL : public ZoneObject {
  private:
   Zone* zone() const { return zone_; }
 
-  const CommonOperatorBuilderImpl& impl_;
+  const CommonOperatorGlobalCache& cache_;
   Zone* const zone_;
 
   DISALLOW_COPY_AND_ASSIGN(CommonOperatorBuilder);