Revert of [runtime] Remove useless IN builtin.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index efc47b6113a11fca96b221613115801159895283..d5868f399f0cc02d72d497fa3309175b250d4c6c 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -11360,10 +11360,11 @@
     return ast_context()->ReturnInstruction(result, expr->id());
 
   } else if (op == Token::IN) {
+    HValue* function = AddLoadJSBuiltin(Builtins::IN);
     Add<HPushArguments>(left, right);
-    HInstruction* result =
-        New<HCallRuntime>(isolate()->factory()->empty_string(),
-                          Runtime::FunctionForId(Runtime::kHasProperty), 2);
+    // TODO(olivf) InvokeFunction produces a check for the parameter count,
+    // even though we are certain to pass the correct number of arguments here.
+    HInstruction* result = New<HInvokeFunction>(function, 2);
     return ast_context()->ReturnInstruction(result, expr->id());
   }