[turbofan] Make arguments object materialization inlinable.

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 395 matching lines @@
 size_t hash_value(CreateArgumentsParameters const& p) {
   return base::hash_combine(p.type(), p.start_index());
 }
 
 
 std::ostream& operator<<(std::ostream& os, CreateArgumentsParameters const& p) {
   return os << p.type() << ", " << p.start_index();
 }
 
 
+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());
 }
 
 
 bool operator!=(CreateClosureParameters const& lhs,
                 CreateClosureParameters const& rhs) {
   return !(lhs == rhs);
@@ skipping 348 matching lines @@
                                 Handle<String>::hash>(           // --
       IrOpcode::kJSCreateCatchContext, Operator::kNoProperties,  // opcode
       "JSCreateCatchContext",                                    // name
       2, 1, 1, 1, 1, 2,                                          // counts
       name);                                                     // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8