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

test/cctest/compiler/test-js-context-specialization.cc

Index: test/cctest/compiler/test-js-context-specialization.cc
diff --git a/test/cctest/compiler/test-js-context-specialization.cc b/test/cctest/compiler/test-js-context-specialization.cc
index 2450e7cf578c577241c369527c204a8f6dcaf6fb..5ced9b84beb0e9d7314efc06ebc4917c5d49a6a9 100644
--- a/test/cctest/compiler/test-js-context-specialization.cc
+++ b/test/cctest/compiler/test-js-context-specialization.cc
@@ -222,7 +222,7 @@ TEST(SpecializeToContext) {
 
     Node* ret =
         t.graph()->NewNode(t.common()->Return(), add, effect_use, start);
-    Node* end = t.graph()->NewNode(t.common()->End(), ret);
+    Node* end = t.graph()->NewNode(t.common()->End(1), ret);
     USE(end);
     t.graph()->SetEnd(end);