[turbofan] Check node input/use consistency for changed operators and new nodes.

src/compiler/diamond.h

Index: src/compiler/diamond.h
diff --git a/src/compiler/diamond.h b/src/compiler/diamond.h
index e7e0a2c32d584a80ad688ccd9e74d39316065b2a..f562092a8a4395f7acadb89df68dc84e0a2d4882 100644
--- a/src/compiler/diamond.h
+++ b/src/compiler/diamond.h
@@ -52,10 +52,6 @@ struct Diamond {
   Node* Phi(MachineType machine_type, Node* tv, Node* fv) {
     return graph->NewNode(common->Phi(machine_type, 2), tv, fv, merge);
   }
-
-  Node* EffectPhi(Node* tv, Node* fv) {
-    return graph->NewNode(common->EffectPhi(2), tv, fv, merge);
-  }
 };
 
 }  // namespace compiler