[Interpreter] Inline Inc/Dec code stubs into bytecode handlers.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index 323e9bec6b810652f79bf9d88d2e2d6234f86363..bbb90a874db85709579cd1375b713f5ea7939a93 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -836,33 +836,29 @@ void Interpreter::DoShiftRightLogical(InterpreterAssembler* assembler) {
   DoBinaryOp<ShiftRightLogicalStub>(assembler);
 }
 
-void Interpreter::DoCountOp(Callable callable,
-                            InterpreterAssembler* assembler) {
-  Node* target = __ HeapConstant(callable.code());
+template <class Generator>
+void Interpreter::DoCountOp(InterpreterAssembler* assembler) {
   Node* value = __ GetAccumulator();
   Node* context = __ GetContext();
-  Node* result = __ CallStub(callable.descriptor(), target, context, value);
+  Node* result = Generator::Generate(assembler, value, context);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
-
 // Inc
 //
 // Increments value in the accumulator by one.
 void Interpreter::DoInc(InterpreterAssembler* assembler) {
-  DoCountOp(CodeFactory::Inc(isolate_), assembler);
+  DoCountOp<IncStub>(assembler);
 }
 
-
 // Dec
 //
 // Decrements value in the accumulator by one.
 void Interpreter::DoDec(InterpreterAssembler* assembler) {
-  DoCountOp(CodeFactory::Dec(isolate_), assembler);
+  DoCountOp<DecStub>(assembler);
 }
 
-
 // LogicalNot
 //
 // Perform logical-not on the accumulator, first casting the