[turbofan] Initial support for constructor call inlining.

src/compiler/frame-states.h

 // Copyright 2015 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_FRAME_STATES_H_
 #define V8_COMPILER_FRAME_STATES_H_
 
 #include "src/handles.h"
 #include "src/utils.h"
 
@@ skipping 59 matching lines @@
       : kind_(kind), parameter_(parameter) {}
 
   Kind const kind_;
   size_t const parameter_;
 };
 
 
 // The type of stack frame that a FrameState node represents.
 enum class FrameStateType {
   kJavaScriptFunction,  // Represents an unoptimized JavaScriptFrame.
-  kArgumentsAdaptor     // Represents an ArgumentsAdaptorFrame.
+  kArgumentsAdaptor,    // Represents an ArgumentsAdaptorFrame.
+  kConstructStub        // Represents a ConstructStubFrame.
 };
 
 
 enum ContextCallingMode {
   CALL_MAINTAINS_NATIVE_CONTEXT,
   CALL_CHANGES_NATIVE_CONTEXT
 };
 
 
 class FrameStateFunctionInfo {
@@ skipping 70 matching lines @@
 static const int kFrameStateContextInput = 3;
 static const int kFrameStateFunctionInput = 4;
 static const int kFrameStateOuterStateInput = 5;
 static const int kFrameStateInputCount = kFrameStateOuterStateInput + 1;
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_FRAME_STATES_H_