[turbofan] Introduce JSToInteger and JSToLength operators.

src/compiler/js-intrinsic-lowering.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_INTRINSIC_LOWERING_H_
 #define V8_COMPILER_JS_INTRINSIC_LOWERING_H_
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-reducer.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class Callable;
-class TypeCache;
 
 
 namespace compiler {
 
 // Forward declarations.
 class CommonOperatorBuilder;
 class JSOperatorBuilder;
 class JSGraph;
 class MachineOperatorBuilder;
 class SimplifiedOperatorBuilder;
@@ skipping 49 matching lines @@
                    int stack_parameter_count);
 
   Graph* graph() const;
   JSGraph* jsgraph() const { return jsgraph_; }
   Isolate* isolate() const;
   CommonOperatorBuilder* common() const;
   JSOperatorBuilder* javascript() const;
   MachineOperatorBuilder* machine() const;
   SimplifiedOperatorBuilder* simplified() const;
   DeoptimizationMode mode() const { return mode_; }
-  TypeCache const& type_cache() const { return type_cache_; }
 
   JSGraph* const jsgraph_;
   DeoptimizationMode const mode_;
-  TypeCache const& type_cache_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_INTRINSIC_LOWERING_H_