[turbofan] Reduce code duplication in JSTypedLowering somewhat.

src/compiler/js-typed-lowering.h

 // 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.
 
 #ifndef V8_COMPILER_JS_TYPED_LOWERING_H_
 #define V8_COMPILER_JS_TYPED_LOWERING_H_
 
 #include "src/base/flags.h"
 #include "src/compiler/graph-reducer.h"
 #include "src/compiler/opcodes.h"
@@ skipping 30 matching lines @@
   JSTypedLowering(Editor* editor, CompilationDependencies* dependencies,
                   Flags flags, JSGraph* jsgraph, Zone* zone);
   ~JSTypedLowering() final {}
 
   Reduction Reduce(Node* node) final;
 
  private:
   friend class JSBinopReduction;
 
   Reduction ReduceJSAdd(Node* node);
-  Reduction ReduceJSModulus(Node* node);
-  Reduction ReduceJSBitwiseOr(Node* node);
-  Reduction ReduceJSMultiply(Node* node);
   Reduction ReduceJSComparison(Node* node);
   Reduction ReduceJSLoadNamed(Node* node);
   Reduction ReduceJSLoadProperty(Node* node);
   Reduction ReduceJSStoreProperty(Node* node);
   Reduction ReduceJSInstanceOf(Node* node);
   Reduction ReduceJSLoadContext(Node* node);
   Reduction ReduceJSStoreContext(Node* node);
   Reduction ReduceJSEqualTypeOf(Node* node, bool invert);
   Reduction ReduceJSEqual(Node* node, bool invert);
   Reduction ReduceJSStrictEqual(Node* node, bool invert);
@@ skipping 12 matching lines @@
   Reduction ReduceJSForInNext(Node* node);
   Reduction ReduceJSForInStep(Node* node);
   Reduction ReduceJSGeneratorStore(Node* node);
   Reduction ReduceJSGeneratorRestoreContinuation(Node* node);
   Reduction ReduceJSGeneratorRestoreRegister(Node* node);
   Reduction ReduceCheckMaps(Node* node);
   Reduction ReduceCheckString(Node* node);
   Reduction ReduceLoadField(Node* node);
   Reduction ReduceNumberRoundop(Node* node);
   Reduction ReduceSelect(Node* node);
-  Reduction ReduceJSSubtract(Node* node);
-  Reduction ReduceJSDivide(Node* node);
-  Reduction ReduceInt32Binop(Node* node, const Operator* intOp);
-  Reduction ReduceUI32Shift(Node* node, Signedness signedness,
-                            const Operator* shift_op);
+  Reduction ReduceNumberBinop(Node* node);
+  Reduction ReduceInt32Binop(Node* node);
+  Reduction ReduceUI32Shift(Node* node, Signedness signedness);
 
   Factory* factory() const;
   Graph* graph() const;
   JSGraph* jsgraph() const { return jsgraph_; }
   Isolate* isolate() const;
   JSOperatorBuilder* javascript() const;
   CommonOperatorBuilder* common() const;
   SimplifiedOperatorBuilder* simplified() const;
   MachineOperatorBuilder* machine() const;
   CompilationDependencies* dependencies() const;
   Flags flags() const { return flags_; }
 
   CompilationDependencies* dependencies_;
   Flags flags_;
   JSGraph* jsgraph_;
   Type* shifted_int32_ranges_[4];
   Type* const true_type_;
   Type* const false_type_;
   Type* const the_hole_type_;
   TypeCache const& type_cache_;
 };
 
 DEFINE_OPERATORS_FOR_FLAGS(JSTypedLowering::Flags)
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_TYPED_LOWERING_H_