[turbofan] Add support for eager/soft deoptimization reasons.

src/compiler/js-native-context-specialization.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_JS_NATIVE_CONTEXT_SPECIALIZATION_H_
 #define V8_COMPILER_JS_NATIVE_CONTEXT_SPECIALIZATION_H_
 
 #include "src/base/flags.h"
 #include "src/compiler/graph-reducer.h"
+#include "src/deoptimize-reason.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class CompilationDependencies;
 class Factory;
 class FeedbackNexus;
 class TypeCache;
 
@@ skipping 50 matching lines @@
   Reduction ReduceNamedAccess(Node* node, Node* value,
                               FeedbackNexus const& nexus, Handle<Name> name,
                               AccessMode access_mode,
                               LanguageMode language_mode);
   Reduction ReduceNamedAccess(Node* node, Node* value,
                               MapHandleList const& receiver_maps,
                               Handle<Name> name, AccessMode access_mode,
                               LanguageMode language_mode,
                               Node* index = nullptr);
 
-  Reduction ReduceSoftDeoptimize(Node* node);
+  Reduction ReduceSoftDeoptimize(Node* node, DeoptimizeReason reason);
 
   // Adds stability dependencies on all prototypes of every class in
   // {receiver_type} up to (and including) the {holder}.
   void AssumePrototypesStable(Type* receiver_type,
                               Handle<Context> native_context,
                               Handle<JSObject> holder);
 
   // Extract receiver maps from {nexus} and filter based on {receiver} if
   // possible.
   bool ExtractReceiverMaps(Node* receiver, Node* effect,
@@ skipping 34 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(JSNativeContextSpecialization);
 };
 
 DEFINE_OPERATORS_FOR_FLAGS(JSNativeContextSpecialization::Flags)
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_NATIVE_CONTEXT_SPECIALIZATION_H_