[turbofan] Base JSCreateClosure comparison on location.

src/compiler/js-operator.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/js-operator.h"
 
 #include <limits>
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
@@ skipping 405 matching lines @@
 const CreateArgumentsParameters& CreateArgumentsParametersOf(
     const Operator* op) {
   DCHECK_EQ(IrOpcode::kJSCreateArguments, op->opcode());
   return OpParameter<CreateArgumentsParameters>(op);
 }
 
 
 bool operator==(CreateClosureParameters const& lhs,
                 CreateClosureParameters const& rhs) {
   return lhs.pretenure() == rhs.pretenure() &&
-         lhs.shared_info().is_identical_to(rhs.shared_info());
+         lhs.shared_info().location() == rhs.shared_info().location();
 }
 
 
 bool operator!=(CreateClosureParameters const& lhs,
                 CreateClosureParameters const& rhs) {
   return !(lhs == rhs);
 }
 
 
 size_t hash_value(CreateClosureParameters const& p) {
-  // TODO(mstarzinger): Include hash of the SharedFunctionInfo here.
-  base::hash<PretenureFlag> h;
-  return h(p.pretenure());
+  return base::hash_combine(p.pretenure(), p.shared_info().location());
 }
 
 
 std::ostream& operator<<(std::ostream& os, CreateClosureParameters const& p) {
   return os << p.pretenure() << ", " << Brief(*p.shared_info());
 }
 
 
 const CreateClosureParameters& CreateClosureParametersOf(const Operator* op) {
   DCHECK_EQ(IrOpcode::kJSCreateClosure, op->opcode());
@@ skipping 359 matching lines @@
                                 Handle<ScopeInfo>::hash>(         // --
       IrOpcode::kJSCreateScriptContext, Operator::kNoProperties,  // opcode
       "JSCreateScriptContext",                                    // name
       1, 1, 1, 1, 1, 2,                                           // counts
       scpope_info);                                               // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8