[KeyedLoadIC] Support Smi "handlers" for simple field loads

src/compiler/code-assembler.cc

 // Copyright 2015 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/code-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 537 matching lines @@
 }
 
 Node* CodeAssembler::TailCallStub(Callable const& callable, Node* context,
                                   Node* arg1, Node* arg2, Node* arg3,
                                   size_t result_size) {
   Node* target = HeapConstant(callable.code());
   return TailCallStub(callable.descriptor(), target, context, arg1, arg2, arg3,
                       result_size);
 }
 
+Node* CodeAssembler::TailCallStub(Callable const& callable, Node* context,
+                                  Node* arg1, Node* arg2, Node* arg3,
+                                  Node* arg4, size_t result_size) {
+  Node* target = HeapConstant(callable.code());
+  return TailCallStub(callable.descriptor(), target, context, arg1, arg2, arg3,
+                      arg4, result_size);
+}
+
 Node* CodeAssembler::TailCallStub(const CallInterfaceDescriptor& descriptor,
                                   Node* target, Node* context, Node* arg1,
                                   size_t result_size) {
   CallDescriptor* call_descriptor = Linkage::GetStubCallDescriptor(
       isolate(), zone(), descriptor, descriptor.GetStackParameterCount(),
       CallDescriptor::kSupportsTailCalls, Operator::kNoProperties,
       MachineType::AnyTagged(), result_size);
 
   Node** args = zone()->NewArray<Node*>(2);
   args[0] = arg1;
@@ skipping 338 matching lines @@
       }
     }
   }
 
   bound_ = true;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8