[refactor] Separate generated builtins and C++ builtins into separate files

src/builtins/builtins-ic-gen.cc

Index: src/builtins/builtins-ic-gen.cc
diff --git a/src/builtins/builtins-ic.cc b/src/builtins/builtins-ic-gen.cc
similarity index 96%
rename from src/builtins/builtins-ic.cc
rename to src/builtins/builtins-ic-gen.cc
index 1b474b2c438cf68b678b3c0f2be8eb93ef2cda9a..29136627e176fab7ff050c7da7609c0555b8bdc3 100644
--- a/src/builtins/builtins-ic.cc
+++ b/src/builtins/builtins-ic-gen.cc
@@ -2,10 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "src/builtins/builtins-utils.h"
 #include "src/builtins/builtins.h"
 #include "src/ic/accessor-assembler.h"
-#include "src/objects-inl.h"
 
 namespace v8 {
 namespace internal {