[turbofan] Change End to take a variable number of inputs.

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 af26a512fd1ff08b8dfaefde466e2a5c0784ed48..cc23bf1c8fb040ab449c9022924b4b12264ca09c 100644
--- a/src/compiler/common-operator.h
+++ b/src/compiler/common-operator.h
@@ -89,7 +89,7 @@ class CommonOperatorBuilder final : public ZoneObject {
   explicit CommonOperatorBuilder(Zone* zone);
 
   const Operator* Dead();
-  const Operator* End();
+  const Operator* End(size_t control_input_count);
   const Operator* Branch(BranchHint = BranchHint::kNone);
   const Operator* IfTrue();
   const Operator* IfFalse();