Correctly forward-declare inline function headers in generic-node.h

src/compiler/simplified-operator-reducer.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/generic-node-inl.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/simplified-operator-reducer.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 SimplifiedOperatorReducer::~SimplifiedOperatorReducer() {}
 
@@ skipping 111 matching lines @@
 Graph* SimplifiedOperatorReducer::graph() const { return jsgraph()->graph(); }
 
 
 Heap* SimplifiedOperatorReducer::heap() const {
   return jsgraph()->isolate()->heap();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8