[Interpreter] Implement TypeOf bytecode using the TypeofStub.

We already have a code stub that implements Typeof, so we don't
need a special runtime entry here to implement the TypeOf handler.

R=rmcilroy@chromium.org

Review URL: https://codereview.chromium.org/1732273002

Cr-Commit-Position: refs/heads/master@{#34283}

src/interpreter/interpreter.cc

@@ -900,10 +900,12 @@ void Interpreter::DoLogicalNot(InterpreterAssembler* assembler) {
 // Load the accumulator with the string representating type of the
 // object in the accumulator.
 void Interpreter::DoTypeOf(InterpreterAssembler* assembler) {
+  Callable callable = CodeFactory::Typeof(isolate_);
+  Node* target = __ HeapConstant(callable.code());
   Node* accumulator = __ GetAccumulator();
   Node* context = __ GetContext();
   Node* result =
-      __ CallRuntime(Runtime::kInterpreterTypeOf, context, accumulator);
+      __ CallStub(callable.descriptor(), target, context, accumulator);
   __ SetAccumulator(result);
   __ Dispatch();
 }

src/runtime/runtime-interpreter.cc

@@ -135,14 +135,6 @@ RUNTIME_FUNCTION(Runtime_InterpreterLogicalNot) {
 }
 
 
-RUNTIME_FUNCTION(Runtime_InterpreterTypeOf) {
-  HandleScope shs(isolate);
-  DCHECK_EQ(1, args.length());
-  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
-  return Object::cast(*Object::TypeOf(isolate, x));
-}
-
-
 RUNTIME_FUNCTION(Runtime_InterpreterNewClosure) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());

src/runtime/runtime.h

@@ -216,7 +216,6 @@ namespace internal {
   F(InterpreterGreaterThanOrEqual, 2, 1)  \
   F(InterpreterToBoolean, 1, 1)           \
   F(InterpreterLogicalNot, 1, 1)          \
-  F(InterpreterTypeOf, 1, 1)              \
   F(InterpreterNewClosure, 2, 1)          \
   F(InterpreterTraceBytecodeEntry, 3, 1)  \
   F(InterpreterTraceBytecodeExit, 3, 1)   \