[WIP] Start adding JSCallWithVarargs

src/compiler/verifier.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/verifier.h"
 
 #include <algorithm>
 #include <deque>
 #include <queue>
 #include <sstream>
@@ skipping 702 matching lines @@
     }
 
     case IrOpcode::kJSConstructForwardVarargs:
     case IrOpcode::kJSConstruct:
     case IrOpcode::kJSConstructWithArrayLike:
     case IrOpcode::kJSConstructWithSpread:
     case IrOpcode::kJSConvertReceiver:
       // Type is Receiver.
       CheckTypeIs(node, Type::Receiver());
       break;
+    case IrOpcode::kJSCallVarargs: {
+      int arity = static_cast<int>(CallVarargsParametersOf(node->op()).arity());
+      CheckValueInputIs(node, arity + 0, Type::OtherInternal());
+      CheckValueInputIs(node, arity + 1, Type::Signed32());
+      // Type can be any JavaScript value.
+      CheckTypeIs(node, Type::NonInternal());
+      break;
+    }
+    case IrOpcode::kJSCall:
     case IrOpcode::kJSCallForwardVarargs:
-    case IrOpcode::kJSCall:
     case IrOpcode::kJSCallWithArrayLike:
     case IrOpcode::kJSCallWithSpread:
     case IrOpcode::kJSCallRuntime:
       // Type can be anything.
       CheckTypeIs(node, Type::Any());
       break;
 
     case IrOpcode::kJSForInPrepare: {
       // TODO(bmeurer): What are the constraints on thse?
       CheckTypeIs(node, Type::Any());
@@ skipping 1057 matching lines @@
          replacement->op()->EffectOutputCount() > 0);
   DCHECK(!NodeProperties::IsFrameStateEdge(edge) ||
          replacement->opcode() == IrOpcode::kFrameState);
 }
 
 #endif  // DEBUG
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8