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

src/builtins/builtins-conversion-gen.cc

Index: src/builtins/builtins-conversion-gen.cc
diff --git a/src/builtins/builtins-conversion.cc b/src/builtins/builtins-conversion-gen.cc
similarity index 94%
rename from src/builtins/builtins-conversion.cc
rename to src/builtins/builtins-conversion-gen.cc
index 93a8c2e976a05c846470f0c0a9e5910e3b7f8b08..454bccd2b3dd2c6ec6b25e5306e1bb712f42e03f 100644
--- a/src/builtins/builtins-conversion.cc
+++ b/src/builtins/builtins-conversion-gen.cc
@@ -2,7 +2,7 @@
 // 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-utils-gen.h"
 #include "src/builtins/builtins.h"
 #include "src/code-factory.h"
 #include "src/code-stub-assembler.h"
@@ -22,19 +22,6 @@ class ConversionBuiltinsAssembler : public CodeStubAssembler {
   void Generate_OrdinaryToPrimitive(OrdinaryToPrimitiveHint hint);
 };
 
-Handle<Code> Builtins::NonPrimitiveToPrimitive(ToPrimitiveHint hint) {
-  switch (hint) {
-    case ToPrimitiveHint::kDefault:
-      return NonPrimitiveToPrimitive_Default();
-    case ToPrimitiveHint::kNumber:
-      return NonPrimitiveToPrimitive_Number();
-    case ToPrimitiveHint::kString:
-      return NonPrimitiveToPrimitive_String();
-  }
-  UNREACHABLE();
-  return Handle<Code>::null();
-}
-
 // ES6 section 7.1.1 ToPrimitive ( input [ , PreferredType ] )
 void ConversionBuiltinsAssembler::Generate_NonPrimitiveToPrimitive(
     ToPrimitiveHint hint) {
@@ -169,17 +156,6 @@ TF_BUILTIN(ToString, CodeStubAssembler) {
   { Return(CallRuntime(Runtime::kToString, context, input)); }
 }
 
-Handle<Code> Builtins::OrdinaryToPrimitive(OrdinaryToPrimitiveHint hint) {
-  switch (hint) {
-    case OrdinaryToPrimitiveHint::kNumber:
-      return OrdinaryToPrimitive_Number();
-    case OrdinaryToPrimitiveHint::kString:
-      return OrdinaryToPrimitive_String();
-  }
-  UNREACHABLE();
-  return Handle<Code>::null();
-}
-
 // 7.1.1.1 OrdinaryToPrimitive ( O, hint )
 void ConversionBuiltinsAssembler::Generate_OrdinaryToPrimitive(
     OrdinaryToPrimitiveHint hint) {