Detect simple tail calls

src/compiler/node-properties.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_NODE_PROPERTIES_H_
 #define V8_COMPILER_NODE_PROPERTIES_H_
 
 #include "src/compiler/node.h"
 #include "src/types.h"
 
@@ skipping 54 matching lines @@
   static bool IsControl(Node* node) {
     return IrOpcode::IsControlOpcode(node->opcode());
   }
   static bool IsConstant(Node* node) {
     return IrOpcode::IsConstantOpcode(node->opcode());
   }
   static bool IsPhi(Node* node) {
     return IrOpcode::IsPhiOpcode(node->opcode());
   }
 
+  static bool IsExceptionalCall(Node* node);
 
   // ---------------------------------------------------------------------------
   // Miscellaneous mutators.
 
   static void ReplaceContextInput(Node* node, Node* context);
   static void ReplaceControlInput(Node* node, Node* control);
   static void ReplaceEffectInput(Node* node, Node* effect, int index = 0);
   static void ReplaceFrameStateInput(Node* node, int index, Node* frame_state);
   static void RemoveNonValueInputs(Node* node);
 
@@ skipping 43 matching lines @@
 
  private:
   static inline bool IsInputRange(Edge edge, int first, int count);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_NODE_PROPERTIES_H_