[turbofan] Make arguments object materialization inlinable.

src/compiler/js-generic-lowering.cc

Index: src/compiler/js-generic-lowering.cc
diff --git a/src/compiler/js-generic-lowering.cc b/src/compiler/js-generic-lowering.cc
index c7c6b1f0d6d638d7fd06c8edcbf0d0445007406a..ece5a72541e153b1d4b94645d4e5c8025e50e1d6 100644
--- a/src/compiler/js-generic-lowering.cc
+++ b/src/compiler/js-generic-lowering.cc
@@ -115,7 +115,6 @@ REPLACE_COMPARE_IC_CALL_WITH_LANGUAGE_MODE(JSGreaterThanOrEqual, Token::GTE)
     ReplaceWithRuntimeCall(node, fun);            \
   }
 REPLACE_RUNTIME_CALL(JSCreate, Runtime::kAbort)
-REPLACE_RUNTIME_CALL(JSCreateArguments, Runtime::kNewArguments)
 REPLACE_RUNTIME_CALL(JSCreateFunctionContext, Runtime::kNewFunctionContext)
 REPLACE_RUNTIME_CALL(JSCreateWithContext, Runtime::kPushWithContext)
 REPLACE_RUNTIME_CALL(JSCreateBlockContext, Runtime::kPushBlockContext)
@@ -490,6 +489,22 @@ void JSGenericLowering::LowerJSLoadDynamicContext(Node* node) {
 }
 
 
+void JSGenericLowering::LowerJSCreateArguments(Node* node) {
+  const CreateArgumentsParameters& p = CreateArgumentsParametersOf(node->op());
+  switch (p.type()) {
+    case CreateArgumentsParameters::kMappedArguments:
+      ReplaceWithRuntimeCall(node, Runtime::kNewSloppyArguments_Generic);
+      break;
+    case CreateArgumentsParameters::kUnmappedArguments:
+      ReplaceWithRuntimeCall(node, Runtime::kNewStrictArguments_Generic);
+      break;
+    case CreateArgumentsParameters::kRestArray:
+      UNIMPLEMENTED();
+      break;
+  }
+}
+
+
 void JSGenericLowering::LowerJSCreateClosure(Node* node) {
   CreateClosureParameters p = CreateClosureParametersOf(node->op());
   node->InsertInput(zone(), 0, jsgraph()->HeapConstant(p.shared_info()));