[runtime] Remove useless IN builtin.

src/compiler/typer.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/typer.h"
 
 #include "src/base/flags.h"
 #include "src/base/lazy-instance.h"
 #include "src/bootstrapper.h"
 #include "src/compiler/common-operator.h"
@@ skipping 1437 matching lines @@
 
 
 Bounds Typer::Visitor::TypeJSCallFunction(Node* node) {
   return TypeUnaryOp(node, JSCallFunctionTyper);  // We ignore argument types.
 }
 
 
 Bounds Typer::Visitor::TypeJSCallRuntime(Node* node) {
   switch (CallRuntimeParametersOf(node->op()).id()) {
     case Runtime::kInlineIsSmi:
-    case Runtime::kInlineIsNonNegativeSmi:
     case Runtime::kInlineIsArray:
     case Runtime::kInlineIsDate:
     case Runtime::kInlineIsTypedArray:
     case Runtime::kInlineIsMinusZero:
     case Runtime::kInlineIsFunction:
     case Runtime::kInlineIsRegExp:
       return Bounds(Type::None(zone()), Type::Boolean(zone()));
     case Runtime::kInlineDoubleLo:
     case Runtime::kInlineDoubleHi:
       return Bounds(Type::None(zone()), Type::Signed32());
@@ skipping 281 matching lines @@
   UNREACHABLE();
   return Bounds();
 }
 
 
 Bounds Typer::Visitor::TypeObjectIsSmi(Node* node) {
   return Bounds(Type::Boolean());
 }
 
 
-Bounds Typer::Visitor::TypeObjectIsNonNegativeSmi(Node* node) {
-  return Bounds(Type::Boolean());
-}
-
-
 // Machine operators.
 
 Bounds Typer::Visitor::TypeLoad(Node* node) {
   return Bounds::Unbounded();
 }
 
 
 Bounds Typer::Visitor::TypeStore(Node* node) {
   UNREACHABLE();
   return Bounds();
@@ skipping 518 matching lines @@
       TYPED_ARRAYS(TYPED_ARRAY_CASE)
 #undef TYPED_ARRAY_CASE
     }
   }
   return Type::Constant(value, zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8