[builtins]: Uniformly push argument count in TF-generated builtins

test/cctest/compiler/code-assembler-tester.h

Index: test/cctest/compiler/code-assembler-tester.h
diff --git a/test/cctest/compiler/code-assembler-tester.h b/test/cctest/compiler/code-assembler-tester.h
index 1e3c58f453f7b3fa2184943a54eb1d161e7fb35b..c8da903ad21d06b7c409ada2635a7363f11be3e9 100644
--- a/test/cctest/compiler/code-assembler-tester.h
+++ b/test/cctest/compiler/code-assembler-tester.h
@@ -35,10 +35,11 @@ class CodeAssemblerTesterImpl : private ZoneHolder, public CodeAssemblerT {
         scope_(isolate) {}
 
   // Test generating code for a JS function (e.g. builtins).
-  CodeAssemblerTesterImpl(Isolate* isolate, int parameter_count)
+  CodeAssemblerTesterImpl(Isolate* isolate, int parameter_count,
+                          Code::Kind kind = Code::FUNCTION)
       : ZoneHolder(isolate),
         CodeAssemblerT(isolate, ZoneHolder::zone(), parameter_count,
-                       Code::ComputeFlags(Code::FUNCTION), "test"),
+                       Code::ComputeFlags(kind), "test"),
         scope_(isolate) {}
 
   // This constructor is intended to be used for creating code objects with