Add initial support for inlining.

src/compiler/js-context-specialization.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/common-operator.h"
 #include "src/compiler/generic-node-inl.h"
 #include "src/compiler/graph-inl.h"
 #include "src/compiler/js-context-specialization.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/node-aux-data-inl.h"
@@ skipping 14 matching lines @@
   // Requires distinguishing between value and effect edges.
   UseIter iter = node->uses().begin();
   while (iter != node->uses().end()) {
     if (NodeProperties::IsEffectEdge(iter.edge())) {
       DCHECK_NE(NULL, effect);
       iter = iter.UpdateToAndIncrement(effect);
     } else {
       iter = iter.UpdateToAndIncrement(value);
     }
   }
+  node->RemoveAllInputs();
 }
 
 
 class ContextSpecializationVisitor : public NullNodeVisitor {
  public:
   explicit ContextSpecializationVisitor(JSContextSpecializer* spec)
       : spec_(spec) {}
 
   GenericGraphVisit::Control Post(Node* node) {
     switch (node->opcode()) {
@@ skipping 103 matching lines @@
   Operator* op = jsgraph_->javascript()->StoreContext(0, access.index());
   node->set_op(op);
   Handle<Object> new_context_handle = Handle<Object>(context, info_->isolate());
   node->ReplaceInput(0, jsgraph_->Constant(new_context_handle));
 
   return Reducer::Changed(node);
 }
 }
 }
 }  // namespace v8::internal::compiler